Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	15434690000
1995-01-01	20205440000
1996-01-01	18664600000
1997-01-01	20025020000
1998-01-01	16455680000
1999-01-01	13350690000
2000-01-01	16229730000
2001-01-01	20572210000
2002-01-01	23497050000
2003-01-01	27122170000
2004-01-01	33287320000
2005-01-01	38745010000
2006-01-01	44715800000
2007-01-01	58144870000
2008-01-01	75467840000
2009-01-01	61429370000
2010-01-01	73682250000
2011-01-01	89972300000