2004 Least developed countries 2362.412681 2004 Low-middle income 1645.811049 2004 Other low-income 347.139562 2004 Unallocated by income 871.952038 2004 Upper-middle income 512.069210 2005 Least developed countries 2258.423161 2005 Low-middle income 4216.686033 2005 Other low-income 2049.986435 2005 Unallocated by income 652.453745 2005 Upper-middle income 840.913739 2006 Least developed countries 1559.123372 2006 Low-middle income 3045.481708 2006 Other low-income 2448.072390 2006 Unallocated by income 1021.568580 2006 Upper-middle income 662.117260 2007 Least developed countries 1582.408145 2007 Low-middle income 3303.593665 2007 Other low-income 469.984775 2007 Unallocated by income 1074.015070 2007 Upper-middle income 1187.576146 2008 Least developed countries 1567.658898 2008 Low-middle income 2821.543521 2008 Other low-income 443.435859 2008 Unallocated by income 1631.826341 2008 Upper-middle income 1474.603831 2009 Least developed countries 1377.029510 2009 Low-middle income 2507.794134 2009 Other low-income 3013.573436 2009 Unallocated by income 1620.726468 2009 Upper-middle income 1169.563530