Per capita income of Bangladesh

According to World Almanac USA, 2009 the per capita gross domestic product (GDP) of Bangladesh was US $1,300; in the 2010 Almanac it was US $470 per capita, and in Almanac 2011 GDP per capita is US $1,600. We are confused. Would any of our learned readers, the Ministry of Finance, UNDP and US Embassy Dhaka kindly look into the matter and let us know the actual per capita income of Bangladesh, up to date in US Dollar as well as the Bangladeshi currency, for the knowledge and information of all concerned, especially our common people? O.H. Kabir Dhaka-1203