Year	US Dollars, Sum Over Component Sub-periods
1980-01-01	21089400000.000000
1981-01-01	27184200000.000000
1982-01-01	17010599999.999998
1983-01-01	11848300000.000000
1984-01-01	15916200000.000000
1985-01-01	18359100000.000000
1986-01-01	16783900000.000002
1987-01-01	18812400000.000000
1988-01-01	28082000000.000000
1989-01-01	34766000000.000000
1990-01-01	41593300000.000000
1991-01-01	49966600000.000000
1992-01-01	62129400000.000000
1993-01-01	65366500000.000000
1994-01-01	79345900000.000000
1995-01-01	72631300000.000000
1996-01-01	89652300000.000000
1997-01-01	110009000000.000000
1998-01-01	125538300000.000000
1999-01-01	142151200000.000000
2000-01-01	174761200000.000000
2001-01-01	168661000000.000000
2002-01-01	168912800000.000000
2003-01-01	170777900000.000000
2004-01-01	197137400000.000000
2005-01-01	222295400000.000000
2006-01-01	256631300000.000000
2007-01-01	282604400000.000000
2008-01-01	309501300000.000000
2009-01-01	234900600000.000000
2010-01-01	301802700000.000000
2011-01-01	351209100000.000000
2012-01-01	371150600000.000000
2013-01-01	381638200000.000000
2014-01-01	400439600000.000000
2015-01-01	395573400000.000000
2016-01-01	387369000000.000000