2004 Least developed countries 618.210072 2004 Low-middle income 281.554605 2004 Other low-income 58.310891 2004 Unallocated by income 385.067802 2004 Upper-middle income 93.574756 2005 Least developed countries 713.452976 2005 Low-middle income 405.652497 2005 Other low-income 141.432142 2005 Unallocated by income 673.668191 2005 Upper-middle income 120.703020 2006 Least developed countries 809.095438 2006 Low-middle income 352.798746 2006 Other low-income 74.421806 2006 Unallocated by income 840.767081 2006 Upper-middle income 117.316370 2007 Least developed countries 966.127425 2007 Low-middle income 548.790783 2007 Other low-income 107.051403 2007 Unallocated by income 1140.589580 2007 Upper-middle income 126.970669 2008 Least developed countries 1072.815992 2008 Low-middle income 400.178076 2008 Other low-income 124.722863 2008 Unallocated by income 1341.949578 2008 Upper-middle income 138.400700 2009 Least developed countries 901.827334 2009 Low-middle income 313.311956 2009 Other low-income 133.485229 2009 Unallocated by income 1692.676221 2009 Upper-middle income 126.926593