2004 Least developed countries 286.090355 2004 Low-middle income 279.046329 2004 Other low-income 277.559763 2004 Unallocated by income 176.123470 2004 Upper-middle income 43.821572 2005 Least developed countries 330.586533 2005 Low-middle income 370.283364 2005 Other low-income 307.898385 2005 Unallocated by income 392.403260 2005 Upper-middle income 38.752285 2006 Least developed countries 348.562933 2006 Low-middle income 657.172896 2006 Other low-income 328.642560 2006 Unallocated by income 367.087371 2006 Upper-middle income 56.042776 2007 Least developed countries 526.312009 2007 Low-middle income 820.313553 2007 Other low-income 366.104052 2007 Unallocated by income 500.487876 2007 Upper-middle income 54.850129 2008 Least developed countries 646.692106 2008 Low-middle income 788.689702 2008 Other low-income 456.896215 2008 Unallocated by income 676.671949 2008 Upper-middle income 52.415848 2009 Least developed countries 587.657581 2009 Low-middle income 637.241984 2009 Other low-income 450.732055 2009 Unallocated by income 587.556218 2009 Upper-middle income 48.588795