Year	US Dollars, Sum Over Component Sub-periods
1979-01-01	17300000
1980-01-01	29400000
1981-01-01	34000000
1982-01-01	12100000
1983-01-01	3600000
1984-01-01	10600000
1985-01-01	7900000
1986-01-01	13800000
1987-01-01	9600000
1988-01-01	3900000
1989-01-01	400000
1990-01-01	1200000
1991-01-01	300000
1992-01-01	37400000
1993-01-01	84000000
1994-01-01	175900000
1995-01-01	363800000
1996-01-01	466300000
1997-01-01	406200000
1998-01-01	405400000
1999-01-01	360100000
2000-01-01	299800000
2001-01-01	325900000
2002-01-01	445200000
2003-01-01	534600000
2004-01-01	803000000
2005-01-01	905100000
2006-01-01	1082400000
2007-01-01	1076800000
2008-01-01	1483400000
2009-01-01	1427300000
2010-01-01	1402900000
2011-01-01	2052500000
2012-01-01	2010100000
2013-01-01	1609900000
2014-01-01	941600000