Year US Dollars, Sum Over Component Sub-periods 1994-01-01 8414969999.999999 1995-01-01 10540630000.000000 1996-01-01 13241180000.000000 1997-01-01 14031140000.000000 1998-01-01 12346370000.000000 1999-01-01 9058510000.000000 2000-01-01 9563090000.000000 2001-01-01 11424140000.000000 2002-01-01 13570240000.000000 2003-01-01 16167180000.000000 2004-01-01 20510430000.000000 2005-01-01 24854520000.000000 2006-01-01 30963020000.000000 2007-01-01 39122880000.000000 2008-01-01 51078490000.000000 2009-01-01 41544910000.000000 2010-01-01 44962700000.000000 2011-01-01 54012570000.000000