Year	US Dollars, Sum Over Component Sub-periods
1990-01-01	130036273277.733
1991-01-01	128509357413.951
1992-01-01	134855858712.586
1993-01-01	146971186451.625
1994-01-01	166630060765.795
1995-01-01	192882487947.638
1996-01-01	204802326860.327
1997-01-01	218439840915.518
1998-01-01	219950679421.859
1999-01-01	247634968361.531
2000-01-01	288197157334.201
2001-01-01	270666975227.249
2002-01-01	262493033624.373
2003-01-01	283693816463.643
2004-01-01	328368869731.187
2005-01-01	370070905402.153
2006-01-01	398453106863.163
2007-01-01	429464082098.062
2008-01-01	456425644188.062
2009-01-01	321724515573.208
2010-01-01	392109941842.124
2011-01-01	461829394667.004
2012-01-01	462871296211.357
2013-01-01	465345467783.036