Year US Dollars, Sum Over Component Sub-periods 1990-01-01 27744400000.000000 1991-01-01 29310600000.000000 1992-01-01 33662300000.000004 1993-01-01 30635200000.000000 1994-01-01 33644800000.000004 1995-01-01 40309200000.000000 1996-01-01 44487200000.000000 1997-01-01 43866700000.000000 1998-01-01 48370200000.000000 1999-01-01 52473100000.000000 2000-01-01 52597500000.000000 2001-01-01 55766900000.000000 2002-01-01 59867300000.000000 2003-01-01 74211600000.000000 2004-01-01 86170200000.000000 2005-01-01 94762100000.000000 2006-01-01 106389900000.000000 2007-01-01 127731900000.000000 2008-01-01 142768600000.000000 2009-01-01 123303700000.000000 2010-01-01 124693900000.000000 2011-01-01 141850600000.000000 2012-01-01 136825100000.000000 2013-01-01 145104300000.000000