2007 2008 2009 2010
Start date 2007-01-01 2008-01-01 2009-01-01 2010-01-01
As of date 2007-12-31 2008-12-31 2009-12-31 2010-12-31
Currency USD USD USD USD
Impairment loss (reversal of impairment loss), gross loan portfolio — — — —
— 1,112,601 1,337,220 809,959
— 24,787 678,007 109,590
Other movements on impairment loss allowance — 0 -1,220 -21,267
Exchange differences on impairment loss — 0 0 0
Write offs 0 375,258 561,863 352,647