2004 Least developed countries 1775.268071 2004 Low-middle income 132.645298 2004 Other low-income 237.782656 2004 Unallocated by income 371.694621 2004 Upper-middle income 133.138899 2005 Least developed countries 2974.214517 2005 Low-middle income 2432.582650 2005 Other low-income 622.005966 2005 Unallocated by income 1912.234651 2005 Upper-middle income 1081.464082 2006 Least developed countries 3189.176726 2006 Low-middle income 2975.754652 2006 Other low-income 641.457404 2006 Unallocated by income 1751.342797 2006 Upper-middle income 1574.290411 2007 Least developed countries 3896.439042 2007 Low-middle income 3048.209291 2007 Other low-income 663.339428 2007 Unallocated by income 2349.597713 2007 Upper-middle income 1508.777416 2008 Least developed countries 4511.349579 2008 Low-middle income 3316.080608 2008 Other low-income 761.945491 2008 Unallocated by income 2525.208020 2008 Upper-middle income 1760.890027 2009 Least developed countries 3931.367674 2009 Low-middle income 3537.917039 2009 Other low-income 742.058447 2009 Unallocated by income 2981.588764 2009 Upper-middle income 1968.275928