Year US Dollars, Sum Over Component Sub-periods 1995-01-01 78870460000 1996-01-01 81863250000 1997-01-01 80931060000 1998-01-01 84799520000 1999-01-01 81718550000 2000-01-01 82840590000 2001-01-01 82383520000 2002-01-01 88349900000 2003-01-01 101548500000 2004-01-01 114837060000 2005-01-01 122260290000 2006-01-01 128643600000 2007-01-01 149263760000 2008-01-01 165049580000 2009-01-01 190715360000 2010-01-01 196306570000 2011-01-01 235564120000 2012-01-01 216305470000 2013-01-01 237016530000