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 — — — —
— 1,988,611 3,966,200 928,000
— 0 0 -54,000
Other movements on impairment loss allowance — 0 -90 193,000
Exchange differences on impairment loss — 0 0 0
Write offs 489,489 1,042,455 2,356,500 1,131,000