Developing-nation stocks are having their worst start to a year on record, surpassing declines during the global financial crisis and the 1998 Asian currency debacle.

The MSCI Emerging Markets Index has fallen more than 12 percent this year, the most since data started in 1988. In the first 20 days of 1998, the gauge retreated 7.9 percent. It fell at least 8.7 percent in 2008 and 2009. For more details, click here.

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