Year	US Dollars, Sum Over Component Sub-periods
1970-01-01	2505000000
1971-01-01	3807700000
1972-01-01	4434900000
1973-01-01	5815000000
1974-01-01	7312300000
1975-01-01	8844500000
1976-01-01	9244000000
1977-01-01	10490700000
1978-01-01	12811400000
1979-01-01	14211000000
1980-01-01	13558100000
1981-01-01	12058200000
1982-01-01	15141200000
1983-01-01	13413100000
1984-01-01	13277200000
1985-01-01	13466600000
1986-01-01	16732000000
1987-01-01	20189200000
1988-01-01	21874700000
1989-01-01	24008700000
1990-01-01	29173400000
1991-01-01	32982100000
1992-01-01	38177500000
1993-01-01	37946400000
1994-01-01	41377900000
1995-01-01	45870900000
1996-01-01	47240900000
1997-01-01	49036300000
1998-01-01	49689500000
1999-01-01	52056800000
2000-01-01	49338100000
2001-01-01	51284400000
2002-01-01	55960100000
2003-01-01	63167300000
2004-01-01	73736000000
2005-01-01	80120400000
2006-01-01	84701900000
2007-01-01	96378500000
2008-01-01	105179900000
2009-01-01	92880200000
2010-01-01	95701800000
2011-01-01	107084700000
2012-01-01	104413200000
2013-01-01	116185500000