2004 Least developed countries 467.037309 2004 Low-middle income 165.528985 2004 Other low-income 40.797950 2004 Unallocated by income 260.977177 2004 Upper-middle income 41.193390 2005 Least developed countries 373.154362 2005 Low-middle income 425.019886 2005 Other low-income 186.824509 2005 Unallocated by income 292.516779 2005 Upper-middle income 51.481481 2006 Least developed countries 495.841295 2006 Low-middle income 221.889331 2006 Other low-income 255.615753 2006 Unallocated by income 361.297088 2006 Upper-middle income 83.579026 2007 Least developed countries 506.989860 2007 Low-middle income 251.319744 2007 Other low-income 47.238674 2007 Unallocated by income 473.297079 2007 Upper-middle income 38.181153 2008 Least developed countries 546.943905 2008 Low-middle income 320.539024 2008 Other low-income 73.644594 2008 Unallocated by income 490.920992 2008 Upper-middle income 50.607266 2009 Least developed countries 623.776188 2009 Low-middle income 217.460536 2009 Other low-income 106.632834 2009 Unallocated by income 668.049725 2009 Upper-middle income 47.465681