Year	US Dollars, Sum Over Component Sub-periods
1972-01-01	219900000.0000000
1973-01-01	280800000.0000000
1974-01-01	171200000.0000000
1975-01-01	2587200000.0000000
1976-01-01	3368600000.0000000
1977-01-01	3440600000.0000000
1978-01-01	4400900000.0000000
1979-01-01	2444100000.0000000
1980-01-01	-638700000.0000000
1981-01-01	2647800000.0000000
1982-01-01	3850300000.0000000
1983-01-01	3715800000.0000000
1984-01-01	4240399999.9999995
1985-01-01	4920500000.0000000
1986-01-01	6708200000.0000000
1987-01-01	7295000000.0000000
1988-01-01	8791500000.0000000
1989-01-01	6778200000.0000000
1990-01-01	8304200000.0000010
1991-01-01	10160900000.0000000
1992-01-01	14653400000.0000000
1993-01-01	18915200000.0000000
1994-01-01	16960200000.0000000
1995-01-01	20554100000.0000000
1996-01-01	21347100000.0000000
1997-01-01	24680700000.0000000
1998-01-01	25173500000.0000000
1999-01-01	29087900000.0000000
2000-01-01	30117200000.0000000
2001-01-01	20921500000.0000000
2002-01-01	24578700000.0000000
2003-01-01	43302000000.0000000
2004-01-01	48587100000.0000000
2005-01-01	52412300000.0000000
2006-01-01	58182900000.0000000
2007-01-01	38853800000.0000000
2008-01-01	10949900000.0000000
2009-01-01	53848000000.0000000
2010-01-01	81025300000.0000000
2011-01-01	59026100000.0000000
2012-01-01	60864800000.0000000
2013-01-01	84536200000.0000000