2004 Least developed countries 0.000000 2004 Low-middle income 1.460113 2004 Other low-income 0.750000 2004 Unallocated by income 10.126365 2004 Upper-middle income 0.099000 2005 Least developed countries 0.000000 2005 Low-middle income 5.813253 2005 Other low-income 2.109769 2005 Unallocated by income 1.699239 2005 Upper-middle income 0.028000 2006 Least developed countries 145.069644 2006 Low-middle income 69.841473 2006 Other low-income 40.924188 2006 Unallocated by income 192.173090 2006 Upper-middle income 33.075946 2007 Least developed countries 207.953829 2007 Low-middle income 93.430305 2007 Other low-income 54.261985 2007 Unallocated by income 210.494123 2007 Upper-middle income 17.914553 2008 Least developed countries 234.500844 2008 Low-middle income 92.939270 2008 Other low-income 53.048815 2008 Unallocated by income 276.289161 2008 Upper-middle income 38.330133 2009 Least developed countries 267.966956 2009 Low-middle income 99.362234 2009 Other low-income 63.579676 2009 Unallocated by income 333.378771 2009 Upper-middle income 21.944743