Year	US Dollars, Sum Over Component Sub-periods
1990-01-01	2399000000.0000000
1991-01-01	1992000000.0000000
1992-01-01	2641000000.0000000
1993-01-01	2620000000.0000000
1994-01-01	2958000000.0000000
1995-01-01	3628000000.0000000
1996-01-01	3507000000.0000000
1997-01-01	4052790000.0000000
1998-01-01	4200850000.0000005
1999-01-01	4361920000.0000000
2000-01-01	4772690000.0000000
2001-01-01	5550710000.0000000
2002-01-01	6848160000.0000000
2003-01-01	9150870000.0000000
2004-01-01	10183630000.0000000
2005-01-01	11346660000.0000000
2006-01-01	11888380000.0000000
2007-01-01	15443860000.0000000
2008-01-01	17976370000.0000000
2009-01-01	15803260000.0000000
2010-01-01	15529630000.0000000
2011-01-01	17586020000.0000000
2012-01-01	16162540000.0000000
2013-01-01	16893980000.0000000