Year	US Dollars, Sum Over Component Sub-periods
1980-01-01	833200000
1981-01-01	1020400000
1982-01-01	1042700000
1983-01-01	1172700000
1984-01-01	1361300000
1985-01-01	1985300000
1986-01-01	1575300000
1987-01-01	1919100000
1988-01-01	2256600000
1989-01-01	2544100000
1990-01-01	3978300000
1991-01-01	2991300000
1992-01-01	3386300000
1993-01-01	3640400000
1994-01-01	3781900000
1995-01-01	3959900000
1996-01-01	4531000000
1997-01-01	5247400000
1998-01-01	6012400000
1999-01-01	6313000000
2000-01-01	6993900000
2001-01-01	9338000000
2002-01-01	10268500000
2003-01-01	15600600000
2004-01-01	18762500000
2005-01-01	22137500000
2006-01-01	25948900000
2007-01-01	26405000000
2008-01-01	25468700000
2009-01-01	21592800000
2010-01-01	21536900000
2011-01-01	22973600000
2012-01-01	22558900000
2013-01-01	21653200000
2014-01-01	22915200000
2015-01-01	24300500000
2016-01-01	26650100000