Year US Dollars, Sum Over Component Sub-periods 1995-01-01 10708500000.000000 1996-01-01 12023800000.000000 1997-01-01 12698900000.000000 1998-01-01 14161500000.000000 1999-01-01 16891099999.999998 2000-01-01 20009600000.000000 2001-01-01 19762300000.000000 2002-01-01 20515000000.000000 2003-01-01 25432000000.000000 2004-01-01 33933800000.000004 2005-01-01 40451900000.000000 2006-01-01 50665400000.000000 2007-01-01 64833600000.000000 2008-01-01 67965600000.000010 2009-01-01 57795200000.000000 2010-01-01 63543600000.000000 2011-01-01 71797900000.000000 2012-01-01 74369100000.000000 2013-01-01 80098100000.000000