Brazil, Russia, China and India, the so called BRIC countries, were the foundation of the emerging markets trade during the global bull market from 2002 to 2007, as the financial crisis went global, they have also led the decline on the way down as well. Seeking Alpha provides an updated chart of the declines from their peaks for Brazil, Russia, India, and China.
As shown, Russia is down the most at -76%, followed by China (-67%), India (-56%), and Brazil (-52%).