2004 Least developed countries 298.307669 2004 Low-middle income 121.440978 2004 Other low-income 99.756664 2004 Unallocated by income 190.399158 2004 Upper-middle income 12.458247 2005 Least developed countries 366.998049 2005 Low-middle income 146.335451 2005 Other low-income 97.953503 2005 Unallocated by income 157.509548 2005 Upper-middle income 16.563766 2006 Least developed countries 400.065041 2006 Low-middle income 194.690278 2006 Other low-income 206.854360 2006 Unallocated by income 202.263797 2006 Upper-middle income 52.486983 2007 Least developed countries 529.507588 2007 Low-middle income 210.353140 2007 Other low-income 259.238415 2007 Unallocated by income 416.833682 2007 Upper-middle income 27.117738 2008 Least developed countries 557.221674 2008 Low-middle income 185.044799 2008 Other low-income 279.720368 2008 Unallocated by income 419.461055 2008 Upper-middle income 37.708757 2009 Least developed countries 650.984008 2009 Low-middle income 161.245301 2009 Other low-income 214.690171 2009 Unallocated by income 611.572805 2009 Upper-middle income 27.814271