Year	US Dollars, Sum Over Component Sub-periods
1971-01-01	38514900000
1972-01-01	46015500000
1973-01-01	65786200000
1974-01-01	88733000000
1975-01-01	89770000000
1976-01-01	101253000000
1977-01-01	116902100000
1978-01-01	140717100000
1979-01-01	170047700000
1980-01-01	191599600000
1981-01-01	174969900000
1982-01-01	175635500000
1983-01-01	168417000000
1984-01-01	170708600000
1985-01-01	181925300000
1986-01-01	240404300000
1987-01-01	289937800000
1988-01-01	322082600000
1989-01-01	339886800000
1990-01-01	409815800000
1991-01-01	402973300000
1992-01-01	430083400000
1993-01-01	379585700000
1994-01-01	425484000000
1995-01-01	519799600000
1996-01-01	520271900000
1997-01-01	507776900000
1998-01-01	537389100000
1999-01-01	538748400000
2000-01-01	545007100000
2001-01-01	566105800000
2002-01-01	610333400000
2003-01-01	746675000000
2004-01-01	907361700000
2005-01-01	982573300000
2006-01-01	1134910800000
2007-01-01	1351717500000
2008-01-01	1490513700000
2009-01-01	1167148700000
2010-01-01	1334627600000
2011-01-01	1576338000000
2012-01-01	1507746100000
2013-01-01	1554284300000