Last updated: June 2, 2014
Next expected: November 1, 2014
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Bloomberg Visual Data, Bloomberg Rankings and Tom Randall
Brazilian gasoline has been artificially cheap since 2011, when President Dilma Rousseff started using fuel price caps to help curb inflation. The policy has cost Petrobras, the state-run oil producer, $40 billion.
The price caps may be nearing their end. Rousseff faces slumping popularity and an election in October. Even if she wins, she may ease the price controls.
Brazil is one of the earth's natural-resource superpowers, and oil is no exception, with more than 2.3 million barrels pumped every day. The country is also the second-biggest consumer of biofuels.
The average daily income in Brazil is $30. The share of a day's wages needed to buy a gallon of gas is 18 percent.
Canada is the world's sixth-biggest oil producer and has one of the highest per capita incomes in the world. These stats add up to cheap gas and mild pain at the pump.
As with many countries, cheap gas goes hand in hand with higher consumption. Only Americans use more gas per capita than Canadians do.
Canada is the second-biggest country by area, after Russia, and is thinly populated. That makes for long transportation routes, with fuel costs that trickle through the economy.
The average daily income is $137. It takes 3.3 percent of a day's wages to afford a gallon of gas.
Italy's economy is struggling to put its longest slump on record behind it, and the cost of gas isn't helping. GDP unexpectedly contracted in the first quarter of this year after a 0.1 percent increase in the prior quarter.
High gas prices and economic uncertainty have been a shock to the home country of Fiat and Ferrari, where car ownership is among the highest in the world. Italian fuel prices rose 8.5 percent since July. The country now has the third most expensive gas in the 61-nation ranking.
Average daily income is $99. It takes 9.4 percent of a day's wages to buy a gallon of gas.
When Europeans buy cars, Czechs go to work building them. The country manufactures more than a million vehicles a year for companies that include Toyota, Volkswagen and Hyundai.
Car purchases are a particularly strong economic barometer in the Czech Republic, where cars make up the largest manufacturing industry. Automakers are predicting industrywide delivery growth of 2 percent to 3 percent for 2014, following six years of declines.
Average daily income is $52. It takes 13 percent of a day's wages to buy a gallon of gas.
Petroleum accounts for almost half of Kuwait's GDP and 95 percent of its exports and government income. In 2010, the country said it would spend $130 billion over five years to expand private business and move the focus from oil.
The high price of oil since 2010 has lifted the economy and filled government coffers. However, the IMF has warned that Kuwait will use up its oil savings by 2017 if it continues to subsidize gas and social programs at the current rate.
Kuwait has one of the world's biggest gas subsidies. Filling up isn't any trouble for Kuwaitis. The average daily income is $127 -- enough to buy 157 gallons of gas if there were a car big enough to hold it.
Kuwaitis are the third-biggest consumers of gasoline after the U.S. and Canada.
Lithuania's gas price increased 5.8 percent since July. It's still cheap compared with perfume. If you wanted to fill up on The Scent of Lithuania -- the world's first national fragrance -- it would set you back about $5,900 a gallon.
Lithuania's growing economy consistently defied the European slump in recent years, and the IMF forecasts GDP will grow another 3.3 percent in 2014. Wages are rising, and so is gas consumption.
The average daily income is $46, of which 15 percent is required to purchase a gallon of gas.
Luxembourgers are among the world's biggest gas guzzlers. Only Americans, Canadians and Kuwaitis burn more fuel. The country also has the third-highest car ownership rate in the 61-country ranking, with 739 cars for every 1,000 people, according to data compiled by the World Bank.
The tiny landlocked country enjoys the highest per capita income in the world -- $318 a day -- putting the nation's moderate gas prices among the world's most affordable.
It takes 2.2 percent of a day's wages to buy a gallon of gas.
The French economy, Europe's second-biggest, has barely grown over the last two years.
Peugeot, France's biggest automaker, was among those hardest hit as Europe's auto sales contracted for the last six years. The company brought in Dongfeng Motor Corp. as a partner to expand in a country where burning fuel is still on the rise: China.
The price of gas, known in France as essence, declined 2.9 percent from last July, moving the country's rank down eight positions.
Average daily income is $124. It takes 6.4 percent of a day's wages to buy a gallon of gas.
The Dutch economy has struggled to turn the corner, with GDP suddenly contracting 1.4 percent in the first quarter of the year. Gas prices have done little to relieve family budgets.
The bike-pedaling Dutch have the highest fuel tax in the European Union and the most bicycles per capita in the world. Row upon row of them stand parked at train stations, museums and national parks. A vast infrastructure of bike lanes, tunnels and traffic signals makes cycling easy to adopt.
Average daily income is $136. It takes 6.9 percent of a day's wages to buy a gallon of gas.
Slovakia's economy has boomed since its break with the Czech Republic and the subsequent market reforms that allowed it to join the EU in 2004. The country's growth rate earned it the nickname Tatra Tiger, after the Tatra mountain range on its northern border with Poland.
Slovakia rebounded from the 2009 recession with GDP growth greater than 3 percent. Growth has slowed in the last year as the country raises taxes to reduce its budget deficit.
The average daily income is $51. It takes 15 percent of a day's wages to buy a gallon of gas.
Ireland has a reputation for beer drinking. The Irish drink 277 pints a year per person, second only to the Czech Republic.
When it comes to gasoline consumption, the Irish aren't exactly teetotalers either. Ireland is a road-dependent economy with public transportation that's less extensive than in many neighbors in Western Europe.
The average daily income is $131. It takes 6.2 percent of a day's wages to buy a gallon of gas.
Argentina suffered a staggering 11 percent inflation last year. With the currency weakening, the price of gas in pesos rose 47 percent, the most of any country in the 61-nation ranking, even though the price in U.S. dollars was little changed.
Gasoline isn't the only way to fill up in Argentina. The country has 13 percent of the world's natural gas vehicles, according to NGVA Europe, a trade group for natural gas vehicles. It's also the fifth-biggest producer of biofuels in the world.
The average daily income in Argentina is $26, 20 percent of which is needed to buy a gallon of gas.
Norway retained the title for world's most expensive gas. The Scandinavian country doesn't subsidize fuel at the pump, using its oil profits instead for national services, such as free college education and savings for infrastructure improvements.
Norway's high gas prices are an electric carmaker's dream. The country has the biggest share of electric vehicles in the world, making up about 6 percent of new cars sold last year. For several months in 2013, Tesla's luxury Model S was the country's top-selling car. The Nissan Leaf also took a turn in pole position.
With the world's second-highest incomes, Norwegians absorb the high price of gas -- or an electric-car alternative -- with relative ease. The average daily income is $273. It takes 3.6 percent of a day's wages to buy a gallon of gas.
Nigeria has some of the cheapest gas, yet it's out of reach for the nation's poor population.
Nigeria's spending on fuel subsidies burns through much of the proceeds from the nation's oil bounty, making it difficult to invest in much-needed infrastructure and education. An attempt by President Goodluck Jonathan to scrap the subsidies in January 2012 triggered nationwide strikes. He quickly backtracked. The country has budgeted $6 billion this year to pay for the cheap gas.
Nigeria is Africa's top oil producer, yet the country still faces regular fuel shortages due to hoarding and mismanagement. It relies on imports for about 70 percent of its fuel because it lacks the refining capacity to turn its oil into gasoline.
Average daily income is $4.98. It takes 45 percent of a day's wages to buy a gallon of gas.
The price of gas has been Israelis' biggest complaint behind cost-of-living demonstrations in recent years. Prime Minister Benjamin Netanyahu has intervened on numerous occasions to prevent prices from rising as quickly as the global price of oil.
Israel caps the price of 95-octane gas while allowing other forms of the fuel to fluctuate. Average daily income is $104, of which 8 percent is required to buy a gallon of gas.
Australia's controversial carbon tax doesn't apply to driving, which means the nation continues to enjoy relatively pain-free fill-ups at the bowser (the Aussie word for fuel pump).
The carbon tax has shifted the price of energy such that wind energy is now cheaper than coal or natural gas for producing electricity in Australia. Prime Minister Tony Abbott's plans to scrap the tax on carbon have been stalled by disagreement over what, if anything, to do instead. The country has the highest per capita fossil-fuel emissions among industrial nations.
The average daily income in Australia is $167, only 3.1 percent of which is needed to buy a gallon. But Australians spend much time at the bowser, using a lot of gas.
Years of economic sanctions have starved Iran of oil revenues. The country's finances got so bad that in 2010 Iran began a five-year plan to curb its popular energy subsidies.
Iran is the fourth-biggest oil producer and until 2010 had the highest fossil-fuel subsidy in the world. To ease the pain of the subsidy cuts, former President Mahmoud Ahmadinejad started paying everyone $18 a month to help pay the bills. Inflation ensued.
Perhaps the only thing more difficult to get rid of than a gas subsidy is a free lunch. When President Hassan Rouhani asked Iranians to voluntarily give up their monthly stipend, only about 2.4 million of the nation's 77 million people complied.
On April 25, a second round of subsidy cuts went into effect that had been delayed since 2012. Gasoline prices increased 75 percent.
Fuel prices in Singapore climbed 3.4 percent since July. But the cost of fuel matters very little to Singaporeans -- it's the cost of the car that matters.
In Singapore, a Volkswagen Passat will set you back almost $168,000, according to SGCarMart.com. Most of the cost is for the state-auctioned permit, which gives a driver the right to own a car for 10 years. The permits are used to limit congestion and pollution.
The densely urban islands of Singapore, which is made up of 63 separate bodies of land, have one of the smallest networks of roads, spanning just 2,085 miles.
Still, the country makes oil its business, with some of the largest refineries in the world. Singapore imports oil and ships gasoline back to oil-producing countries in the Middle East. A massive expansion of Middle Eastern oil refining is poised to curb profits for Asian processors.
Thailand has cheap gas relative to most nations, but it's a steep price for many Thais. The country is ranked eighth in the portion of an average day's wages needed to buy a gallon of gasoline.
Pain at the pump in Thailand helped encourage wide adoption of three-wheeled auto rickshaws, known as tuk-tuks, in the country's biggest tourist cities. The open-aired vehicles use less gas but are less safe than cars and are big polluters.
Average daily income is $15. It takes 30 percent of a day's wages to buy a gallon of gas.
Life, liberty and the pursuit of happiness. Countries have different ideas of which rights are inalienable. In Western Europe, universal health care is the norm. In oil-rich Norway, college is free. Venezuela stands alone in considering cheap gasoline a birthright. At 4 cents a gallon, it's practically free.
Venezuela is a poor country that burns through gas like a rich one. Fuel-efficient cars don't tend to fly off the lots if it costs less to fill a tank than to buy a cup of coffee.
Former President Hugo Chavez at times called for the country to reduce consumption, but with fuel so cheap there was little incentive. The last time Venezuela tried to cut subsidies, in 1989, it was torn by riots that killed hundreds of people.
The cost of filling up the 39-gallon tank of a Chevrolet Suburban in Venezuela is $1.56, compared with $143.91 in the U.S. and $381.81 in Norway.
Slovenia is a green country. Literally. Protected parks make up 36 percent of the nation's land, and more than half of the country is covered in forest.
Slovenes consume slightly more gasoline than the world average while earning below-average wages. The result is that Slovenes spend the fifth-highest proportion of their annual incomes fueling up.
Average daily income is $65. It takes 12 percent of a day's wages to buy a gallon of gas.
With a population of 1.3 billion, China is the world's second-biggest oil consumer after the U.S. Consumption is expected only to increase as its middle class expands. The number of vehicles in China may triple to 260 million by 2020, matching current U.S. levels, according to the State Information Center.
China regulates the price of retail gasoline and diesel fuel to curb inflation. With low average wages, the country ranks among the worst for gas affordability, despite a gas price that's 20 percent lower than the global average.
The average daily income in China is $20, and it takes almost a quarter of a day's wages to afford a gallon of gas. The average person's consumption isn't formidable; the entire country's is.
Chile's currency took the biggest hit in emerging markets in the last year, after Russia's ruble and Argentina's peso. Priced in local pesos, gas rose 6.9 percent.
Chile depends on petroleum imports to fuel its economy. The country's wells are running dry and people are driving more, so that reliance keeps increasing.
Chile's gas was heavily subsidized prior to the 1970s. To help smooth the transition from subsidies, the country introduced price-adjustment tools including a self-adjusting tax that flattens price spikes. When costs jump too high, the tax declines; when prices fall, the tax rises.
The average daily income is $41. It takes 14 percent of a day's wages to buy a gallon of gas.
Belgium has one of the most expensive gas prices in the world, but high incomes and low consumption mean filling up remains a minor line item in the family budget.
While European Union law prohibits countries from setting price controls, Belgium does set ceilings for oil products to protect consumers from price spikes.
Belgium has negligible oil and gas of its own and relies on imported energy. It subsidized coal production until 1992, when the last mine was closed. Since then, the government hasn't underwritten production of any fossil fuel.
The average daily income is $131. The share of a day's wages needed to buy a gallon of gas is 6.6 percent.
Since Germany's reunification, the country has committed 33.9 billion euros to transportation infrastructure in the east. The region now boasts the finest autobahns in the nation. Pristine, pothole-free roads mean speedsters can push their BMWs to more than 250 kilometers an hour.
The relative price of filling up in Germany increased 6.2 percent since July, raising the country four positions on the global price ranking.
The average cost of gasoline in Europe is more than double the price in the U.S. A German driver filling the 14.5-gallon (55-liter) tank of Europe's most popular car, Volkswagen's Golf hatchback, pays $123.25, compared with $53.51 for the same fill-up in the U.S.
Hong Kong is part of China but has its own constitution, political structure and price of gas. On average, Hong Kong residents now pay 75 percent more for a gallon of gas than do their neighbors in China, where the government caps the price.
Hong Kong and China are both among the world's smallest consumers of gasoline per capita. Hong Kong drivers, with their higher urban incomes, feel less pain at the pump. In fact, Hong Kongers spend a smaller proportion of their annual paychecks filling up than do the people of any other country except Venezuela.
Average daily income is $110. It takes 7.5 percent of a day's wages to buy a gallon of gas.
Poland has a relatively low gas tax for Europe. That hasn't stopped fuel tax fraud, which cost the country 3 billion zloty ($943 million) in 2012, according to the Polish Organization of Oil Industry and Trade. Tax cheating jumped 47 percent from 2010 to 2012.
Poland relies on Russia for 90 percent of its oil imports and more than 80 percent of its natural gas. Poland is trying to shift to cleaner energy sources and has a target of getting 15.5 percent of energy from renewables by 2020. As of 2012, coal still accounted for 55 percent of the energy supply, the highest in Europe.
Average daily income is $39. It takes 17 percent of a day's wages to buy a gallon of gas.
Spain's economic doldrums continue. While the country's GDP has stopped contracting in the last few quarters, the jobless rate hasn't dropped below 25 percent since 2012.
The population has declined for the last three years as people seek work elsewhere. Gas prices in U.S. dollars climbed 6.3 percent since July.
Average daily income is $83. It takes 8.9 percent of a day's wages to buy a gallon of gas.
Indonesia has crude problems. The country's aging oil fields are producing less than half the crude they did in the mid-1990s, turning Indonesia from exporter to importer.
But while the country's oil boom has faded, its subsidies have not. They've become unaffordable for the government. About 15 percent of this year's budget is to subsidize energy.
A year ago, President Susilo Bambang Yudhoyono stared down demonstrators and ordered cuts to the subsidies. The change drove up the cost of living nationwide, weighing especially heavily on the nation's 100 million people who live on less than $2 a day.
Most Indonesians buy a subsidized grade of fuel that has a lower octane than what's available in most countries and what's used for the Bloomberg ranking. The subsidized cost at the pump: 6,500 rupiah per liter ($2.18 a gallon).
Separate studies in recent years have suggested there's relatively little trouble in Denmark: It measures as having the least income inequality, the happiest people and the least corruption in the world.
Copenhagen, the capital, is also perhaps the most bike-friendly city in the world. More than 50 percent of Copenhageners commute to work or school by bicycle. The world's busiest biking lane -- Dronning Louises Bro -- hosts 36,000 bicyclists every day.
Denmark has the highest gasoline tax in the EU and prices that are more than 50 percent higher than the world average. Still, filling up is relatively cheap for Danes. Average daily income is $170. It takes 5.4 percent of a day's wages to buy a gallon of gas.
The Philippines is shifting to a manufacturing and services economy from one based primarily on agriculture. The economy grew a mighty 7.2 percent last year. Energy demand is high. Wages aren't.
Filipinos' pain at the pump is partly offset by an unconventional energy resource available to their economy. The country is the world's second-biggest producer of geothermal energy after the U.S., according to the International Geothermal Association. The nation of 95 million people and 7,100 islands uses this natural source for about 17 percent of its energy needs.
The Philippines consumes a small fraction of the gasoline used by most other countries in the ranking. Average daily income is $8.04. It takes 56 percent of a day's wages to buy a gallon of gas.
Finns are some of the world's fastest drivers. Maybe it's the caffeine. High-flying Finns consume three times more coffee (26 pounds per person every year) than Americans.
The Finnish record on the race track is no less excessive. Finns have won the World Rally championships more than any other country and have won more Formula One championships proportional to their population than any other nationality.
Finns have the 10th-highest gas prices in the 62-nation ranking, though it's little bother in a nation where the average daily income is $136. It takes 6.2 percent of a day's wages to buy a gallon of gas.
The Saudis sit atop two enormously valuable bodies of liquid: oil and water. Both are being pumped to the surface at unsustainable rates.
Beneath Saudi sands sits a reservoir of freshwater buried thousands of years ago during the last Ice Age. NASA estimates the precious water source will be emptied in 50 years. Like Saudi oil, the water isn't replenishable.
Saudi Arabia is OPEC's biggest oil producer and heavily subsidizes its unchanging price of gasoline. Saudis rank among the greatest gas guzzlers in the world but devote among the smallest shares of their incomes to buy it.
The kingdom may be shifting authority over renewable-energy development to Aramco, the state-owned oil company. Aramco has a lot to gain from local renewables; it can sell the oil at much higher prices abroad.
Turkey is coal country. It sits above an estimated 14 billion tons of coal reserves. At a time when most countries are reducing their dependence on the polluting fuel, the Energy Ministry plans to boost power from local coal to about 20 percent by 2020 from 14 percent now.
On May 13, Turkey suffered its worst-ever mining accident: a fire in which 301 workers died. The government's handling of it touched off clashes between protesters and police. Turkey has the worst safety record in the world, according to a 2010 study, with a death rate more than 350 times higher than in the U.S. coal industry.
In recent years Turkey has increased its revenue base through consumption taxes, such as the fuel tax, which are relatively easy to enforce. The country's gas tax is one of the highest in the world.
No one can compete with America when it comes to burning gasoline. Americans consume 1.2 gallons per person each day -- 31 percent more than the second-ranked Canadians.
At the start of the summer driving season, U.S. gas prices remained stuck at their highest level of the year after 12 straight weeks of increases. Prices range from $3.38 a gallon in Arkansas to $4.37 in Hawaii.
Still, Americans have little to complain about. Imagine shelling out $9.79 a gallon, the price in Norway. Indians and Pakistanis must put in more than a full day's work, on average, to afford a single gallon. Only five countries have less pain at the pump than the U.S. does, and four of them are members of OPEC.
Of course, not all gas tanks are created equal. Even with low prices, America's thirst for the open road takes a toll on budgets. The average daily income is $151, of which 2.5 percent is needed to buy a gallon of gas.
Energy prices in Sweden are subject to taxes on tailpipe pollution, including carbon dioxide, the most consequential greenhouse gas. Filling stations there are required to sell alternative fuels, such as ethanol, to help reduce the country's dependence on oil.
Undeterred by one of the highest tax rates in Europe, Swedes remain the 11th-biggest consumers of gasoline per capita.
Average daily income is $164. It takes 4.8 percent of a day's wages to buy a gallon of gas.
Latvia, which regained independence from the Soviet Union in 1991, still depends on Russia for almost all its energy needs.
Latvia was a key terminal for Russia's oil exports on the Baltic coast until the opening of Russia's port at Primorsk and the Baltic Pipeline System. Those projects have drastically diminished the country's role, according to the U.S. Energy Information Administration.
The price of gasoline increased 6.5 percent in Latvia, where the average daily income is $46. It takes 15 percent of a day's wages to buy a gallon of gas.
Croatia, which lost more than 20,000 people fighting for independence in the early 1990s, became the 28th European Union member on July 1. Since then, gasoline prices have climbed more than 10 percent.
The country of 4.2 million is seeking to boost investment in energy and exploration of oil and natural gas supplies in the Adriatic Sea. In October, Croatia joined Hungary and Ukraine to create a natural gas corridor to curb Europe's reliance on Russian fuel.
Croatia is still trying to revive growth after years of recession and stagnation. As much as 10 billion euros in EU funds may be committed through 2020 to modernize communist-era infrastructure and raise living standards to those of other eastern EU nations.
The tiny island nation of Malta is seeking to open up its waters to oil exploration. Located between Italy and Libya, Malta has relied on imports for virtually all of its energy. It's now negotiating with its neighbors over drilling rights and seeking exploration investment from foreign oil companies.
Malta weathered the European debt crisis better than its southern European neighbors did. It has relatively low unemployment, and growth has recovered since the recession in 2009.
Average daily income is $67. It takes 11 percent of a day's wages to buy a gallon of gas.
Japan's long-standing national gasoline tax helped the country's carmakers take an early lead in developing fuel-efficient vehicles. Still, the Japanese consume about a third more gas per capita than the ranking's average.
The country is home to half of the world's fast-charging stations for electric cars, and there's a push to expand that lead. Last year Nissan, Toyota, Honda and Mitsubishi agreed to share costs to help build 12,000 new charging stations.
Average daily income is $104. It takes 5.6 percent of a day's wages to buy a gallon of gas.
With the third-highest incomes in the 61-country ranking, the Swiss can afford to splurge a little on gasoline. The country ranks 10th in amount of gasoline consumed per person.
Despite that indulgence, the Swiss maintain some green credentials. Investments in hydroelectric, nuclear and wind power leave them with a carbon dioxide emissions rate that's less than half the average of OECD nations.
Average daily income is $236. It takes 3.2 percent of a day's wages to buy a gallon of gas.
Kiwis consume a lot of gasoline -- the seventh most per capita in the 61-nation ranking. The country also has the world's fourth-highest rate of car ownership, with 712 cars for every 1,000 people, according to the World Bank.
The average daily income is $119. It takes 5.8 percent of a day's wages to buy a gallon of gas.
Russia is the world's biggest oil producer and enjoys some of the cheapest gasoline prices on the global market. Still, with the country under pressure from U.S. and EU sanctions, ruble-denominated gasoline prices climbed 7.2 percent.
U.S. officials say sanctions now in place fueled a record $60 billion capital outflow in the first quarter of this year in addition to the losses triggered in Russia's stock market and currency. Russia's standoff with Ukraine has helped keep the price of a barrel of Brent crude above $100.
Average daily income is $40. It takes 8 percent of a day's wages to buy a gallon of gas.
With an average daily income of just $21 a day and middling gas prices, it's a burden for Bulgarians to fill up.
Ask Bulgarians if gas is expensive, and they'll likely shake their heads. Because in Bulgaria, shaking your head means yes (and nodding means no).
It takes 32 percent of a Bulgarian's daily wages to buy a gallon of gas -- the sixth most acute pain at the pump in the ranking.
Pakistan now feels more pain at the pump than does India, the previous top sufferer. Pakistanis must put in more than a full day's work, on average, to afford a gallon of gasoline.
Most Pakistanis opt for cheaper compressed natural gas (CNG), which fuels about 80 percent of the nation's auto fleet. Pakistan has about 2.8 million CNG vehicles on the road, the most of any country, according to NGVA Europe, a trade group for natural gas vehicle companies.
Pakistan is the poorest country in the index, with an average daily income of $3.55. It takes more than a day's wages to buy a gallon of gas.
The price of gasoline in Romania increased 16 percent, the most in the 61-nation ranking. The country moved nine positions higher in the rank of most expensive gas.
Rompetrol, Romania's second-biggest oil company, recently suspended plans to expand in Ukraine and Turkey because of political uncertainty. The company still expects to open more gas stations in its home country.
Romanian gas consumption is a quarter of the ranking's average. Average daily income is $26. It takes 28 percent of a day's wages to buy a gallon of gas.
The montado landscape of Portugal produces more than half of the world's cork. Careful management of cork oak trees, whose bark is harvested every nine years, allows the trees to survive for hundreds of years.
The gas tax is one of several levies expanded in Portugal since 2001 to protect the environment. Taxes on vehicles take into account carbon dioxide emissions and engine cylinder capacity and have led to a more efficient fleet on the road.
Gas taxes are higher than in neighboring Spain, leading some Portuguese drivers to cross the border in search of cheaper gas.
Average daily income is $60. It takes 14 percent of a day's wages to buy a gallon of gas.
The cost of gas rose 10 percent since last July, moving Estonia's price rank up five positions.
Estonians use less gasoline than the global average, but with their relatively low incomes, the fuel bill still takes a toll on family budgets.
Estonians do save a bit of gas money on one occasion: voting day. Estonia was the first country in the world to use Internet voting.
The average daily income is $55. It takes 12 percent of a day's wages to buy a gallon of gas.
Mexican subsidies and favorable foreign exchange rates once tempted U.S. drivers to cross the border to fill up. That's changing.
The world's seventh-biggest oil producer has been gradually chipping away at its fuel subsidy. The price at the pump increased 4.5 percent since July.
Mexico recently amended its constitution to open up Mexican oil and gas fields to foreign and private investment for the first time in 76 years. The tax code was also overhauled to begin to wean the country off revenue from Pemex, the state-owned oil producer.
Of all the OECD member countries, only the U.S. charges less in gas taxes than Mexico does. The average daily income is $29. It takes 12 percent of a day's wages to buy a gallon of gas.
The Arab world's most populous nation is seeking to restore stability after the overthrow of President Mohamed Mursi in July. The Mursi government never got around to fulfilling its pledge to overhaul the energy industry and curb subsidies.
Egypt's finances are in disarray, and super-cheap gas is mostly to blame. As the government effectively pays people to drive, it projects a budget deficit this year of 12 percent, one of the worst shortfalls in the world.
Egypt has relied on its oil-rich neighbors for some $15 billion in aid. The aid will diminish next year, and the government has again pledged to overhaul subsidies, to make up the difference.
The average Egyptian income is $9.13 a day. It takes 11 percent of a day's wages to buy a gallon of gas.
Since the discovery of oil in the United Arab Emirates in the 1960s, the U.A.E. has evolved from a poor region of principalities to a wealthy modern state with a high standard of living.
Economic diversification efforts in recent years have reduced the proportion of the economy dependent on oil and gas to 25 percent. The U.A.E. is the world's eighth-biggest oil producer, and as of 2010 it was subsidizing about 68 percent of its gasoline price.
Despite its oil wealth, the U.A.E. has long had to import its gasoline because it lacks refining capacity. The largest-ever expansion of Middle East oil refining is set to change that.
Average daily income is $121. It takes 1.5 percent of a day's wages to buy a gallon of gas.
South Africans face a lot of pain at the pump, which is made worse by the amount of gas they consume. South Africans spend the greatest share of their annual budgets fueling up.
Prices in South Africa are set monthly by the Central Energy Fund, a state-owned entity set up in 1997. The government has raised gas prices in the past year, helping push inflation to the upper bounds of the central bank's maximum target range of 6 percent.
Prices denominated in South African rand rose 8.5 percent since July. The average daily income is $18. It takes 28 percent of a day's wages to buy a gallon of gas.
India was edged out by Pakistan for having the least affordable fuel. In both of these countries, low wages and limited infrastructure result in widespread energy poverty. Quality of life is hampered by limited access to electricity and clean fuels.
Still, India's costly energy subsidies effectively pay people to drive, adding to pollution while undermining the nation's finances. Energy subsidies account for about 10 percent of India's annual budget, according to government estimates.
Consumption subsidies aren't an efficient way to alleviate energy poverty, according to the OECD. They place a burden on the government and taxpayers and primarily benefit wealthier households.
The average Indian needs to work more than a full day to afford a gallon of gasoline. Due to the cost, this country of 1.2 billion people has the lowest per capita consumption.
Economic recovery in the U.K. has strengthened the value of the pound and buffered drivers from the creeping price of oil. The amount of income spent fueling up declined 9.3 percent in the U.K. since last July.
The country still pays more than many of its neighbors do, having the 13th-highest gas price. The average income is $120. It takes 6.9 percent of a day's wages to buy a gallon of gas.
Malaysia's extensive fuel subsidies give it one of the cheapest gas prices in the 61-country ranking.
Cheap gas comes at a cost; despite strong economic growth, Fitch Ratings lowered the country's credit rating last year. Soon after the rating drop, Prime Minister Najib Rasak cut the fuel subsidy by almost 23 cents a gallon.
Gas prices rose 11 percent since July when priced in Malaysian ringgits.
The subsidy cuts weren't met by the same level of social unrest reached in other oil-rich countries. That's partly because the Malaysian economy continues to outperform, with GDP expected to grow as much as 5.5 percent this year.
The average daily income is $31, 7.8 percent of which is needed to buy a gallon of gas.
Austria's economic growth depends on exports, about a third of which go to Germany. Both economies grew about half a percent last year and are forecast to grow 1.7 percent this year.
Austrians buy less gasoline and pay less for it than the European average. With rising incomes and low unemployment, the nation saw little impact due to the climbing price of gas.
The average daily income is $143. The share of a day's wages needed to buy a gallon of gas is 5 percent.
After inflation slowed to a six-decade low in November, analysts were surprised by the speed of its return. Still, Colombia remains the only major Latin American economy beating inflation targets.
Colombia's inflation success is partly due to declines in transportation costs after the government cut a tax on gasoline. Gas prices declined 7 percent, and the country moved down three positions in the ranking of wages needed to buy a gallon of gas.
Gross domestic product is expected to grow 4.5 percent this year, according to the IMF. The average daily income is $22, of which 19 percent is needed to afford a gallon of gas.
Greece's economy improved in the first quarter. Manufacturing improved, stocks climbed and Standard & Poor's raised its rating on the country's biggest lender, National Bank of Greece.
Still, half of Greece's youth don't have work, and wages have fallen since 2010. To help rein in debt, Greece raised gasoline taxes since 2009 to one of the highest in Europe.
Greeks' pain at the pump is worsened by the amount they consume. Only South Africans spend more of their annual incomes on filling up their cars.
Average daily income is $62. It takes 14 percent of a day's wages to buy a gallon of gas.
Production of Hungary's oil and natural gas resources has peaked and is expected to continue to decline, according to the Organization for Economic Cooperation and Development. More than 80 percent of the country's oil is now imported from Russia.
Hungarians really pay for it, even though gas prices rose just 2 percent since last July, in line with the global average increase. Average daily income is $37 -- 19 percent of which is required to buy a gallon of gas.
Despite being one of the world's smaller nations -- roughly the size of the U.S. state of Indiana -- South Korea ranks high in cars.
Hyundai and Kia are fifth in the world by combined global sales. They are particularly popular among younger drivers. Hyundai plans to release a model next year that replaces car keys with a cell phone swipe.
Average daily income is $71. It takes 9.4 percent of a day's wages to buy a gallon of gas.
With above-average gas prices, low incomes and lots of driving, Cypriots devote the third-greatest share of their annual incomes to fueling up.
The cost of driving worsened with an 11 percent jump in gas prices, the third-biggest jump in the 61-nation index. Island nations such as Cyprus generally pay more to have fuel delivered.
Average daily income is $66. It takes 11 percent of a day's wages to buy a gallon of gas.
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