Photograph by SIME/eStock Photo
Price per gallon of gasoline: $5.19
Rank by most expensive gas: 40
Rank by pain at the pump: 19
Argentina, which has the world's third-biggest shale gas reserves after the U.S. and China, also has its third-biggest fleet of cars that run on compressed natural gas, according to NGV Global, a trade group for natural gas vehicle companies.
The average daily income for Argentines is $33. The share of a day's wages needed to buy a gallon of gas is 16 percent.
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