Year	US Dollars, Sum Over Component Sub-periods
1979-01-01	31500000
1980-01-01	42900000
1981-01-01	47700000
1982-01-01	18000000
1983-01-01	17000000
1984-01-01	37900000
1985-01-01	27300000
1986-01-01	19800000
1987-01-01	-11400000
1988-01-01	900000
1989-01-01	500000
1990-01-01	1800000
1991-01-01	2700000
1992-01-01	2500000
1993-01-01	5300000
1994-01-01	-27400000
1995-01-01	17500000
1996-01-01	-38300000
1997-01-01	-252600000
1998-01-01	-459800000
1999-01-01	-88100000
2000-01-01	-197400000
2001-01-01	-471000000
2002-01-01	-356200000
2003-01-01	-151000000
2004-01-01	-677400000
2005-01-01	-40000000
2006-01-01	40800000
2007-01-01	-710300000
2008-01-01	-312400000
2009-01-01	156200000
2010-01-01	-112100000
2011-01-01	2800000
2012-01-01	24600000
2013-01-01	110300000
2014-01-01	-1568200000