Year	US Dollars, Sum Over Component Sub-periods
1980-01-01	3875850000.0000000
1981-01-01	2881680000.0000000
1982-01-01	2290330000.0000000
1983-01-01	1922720000.0000000
1984-01-01	1872230000.0000000
1985-01-01	1451310000.0000000
1986-01-01	1162900000.0000000
1987-01-01	1492260000.0000000
1988-01-01	1857030000.0000000
1989-01-01	1437980000.0000000
1990-01-01	1690540000.0000000
1991-01-01	1729350000.0000000
1992-01-01	1583280000.0000000
1993-01-01	1240610000.0000000
1994-01-01	1154860000.0000000
1995-01-01	1184500000.0000000
1996-01-01	1180860000.0000000
1997-01-01	1807700000.0000000
1998-01-01	350820000.0000000
1999-01-01	17830000.0000000
2000-01-01	-1028450000.0000000
2001-01-01	973460000.0000000
2002-01-01	-613530000.0000000
2003-01-01	863800000.0000000
2004-01-01	1072849999.9999999
2005-01-01	-844000000.0000000
2006-01-01	1310790000.0000000
2007-01-01	-3134760000.0000000
2008-01-01	2076949999.9999998
2009-01-01	381490000.0000000
2010-01-01	-1227880000.0000000
2011-01-01	-629160000.0000000
2012-01-01	1063490000.0000000
2013-01-01	3193290000.0000000