The list reflects the earnings of pro-gamers in the period from 2010 up to and including 31.01.2011. 17 major tournaments have been used to derive this statistics and this includes all four GSLs, the three MLGs, IEM New York and Cologne, Blizzcon 2010, Dreamhack 2010, Gainward, GomTV all-stars, Ygosu invitational, Kaspersky invitational, the Swedish SC2 Pilot Season and Brainnox.
Just four foreigners have found their way in the top 20: Jinro (~ $19,500), Naame (~ $14,700), IdrA ($10,200) and Fenix ($7,800).
Links
GOMtv.net - Source