Year	US Dollars, Sum Over Component Sub-periods
1990-01-01	9152000000
1991-01-01	9687000000
1992-01-01	10096000000
1993-01-01	8119000000
1994-01-01	7648000000
1995-01-01	12863000000
1996-01-01	14181000000
1997-01-01	19637000000
1998-01-01	20749000000
1999-01-01	25588500000
2000-01-01	28723000000
2001-01-01	31069100000
2002-01-01	34778700000
2003-01-01	43240700000
2004-01-01	55496200000
2005-01-01	61703900000
2006-01-01	73455700000
2007-01-01	93066400000
2008-01-01	106104300000
2009-01-01	80223100000
2010-01-01	88800300000
2011-01-01	103715600000
2012-01-01	97313000000
2013-01-01	103432400000