Year US Dollars, Sum Over Component Sub-periods 1994-01-01 27452100000 1995-01-01 33674600000 1996-01-01 37055000000 1997-01-01 37718500000 1998-01-01 38815600000 1999-01-01 35514200000 2000-01-01 34453800000 2001-01-01 33046400000 2002-01-01 35021600000 2003-01-01 40479300000 2004-01-01 48904900000 2005-01-01 54839000000 2006-01-01 63554200000 2007-01-01 78641700000 2008-01-01 86770300000 2009-01-01 68127700000 2010-01-01 76094500000 2011-01-01 92202500000 2012-01-01 90317100000 2013-01-01 94158100000