2004 Least developed countries 169.069648 2004 Low-middle income 896.677543 2004 Other low-income 34.277439 2004 Unallocated by income 276.598780 2004 Upper-middle income 170.959080 2005 Least developed countries 411.694506 2005 Low-middle income 1062.382887 2005 Other low-income 61.899056 2005 Unallocated by income 349.667961 2005 Upper-middle income 95.008042 2006 Least developed countries 230.298095 2006 Low-middle income 1217.216710 2006 Other low-income 168.361266 2006 Unallocated by income 460.617580 2006 Upper-middle income 210.682649 2007 Least developed countries 432.480648 2007 Low-middle income 1480.588496 2007 Other low-income 90.768070 2007 Unallocated by income 1242.920764 2007 Upper-middle income 297.746137 2008 Least developed countries 880.305925 2008 Low-middle income 2093.009092 2008 Other low-income 153.194086 2008 Unallocated by income 1906.151763 2008 Upper-middle income 378.624290 2009 Least developed countries 910.941093 2009 Low-middle income 1805.645408 2009 Other low-income 253.405310 2009 Unallocated by income 1578.410009 2009 Upper-middle income 389.874488