Year	US Dollars, Sum Over Component Sub-periods
1970-01-01	12445600000.00000
1971-01-01	14043200000.00000
1972-01-01	16246800000.00000
1973-01-01	22329200000.00000
1974-01-01	31985600000.00000
1975-01-01	33572500000.00000
1976-01-01	37528400000.00000
1977-01-01	42720600000.00000
1978-01-01	50090900000.00000
1979-01-01	64274800000.00000
1980-01-01	58912300000.00000
1981-01-01	50139500000.00000
1982-01-01	60821700000.00000
1983-01-01	59282600000.00000
1984-01-01	59221600000.00000
1985-01-01	61694700000.00000
1986-01-01	71802200000.00000
1987-01-01	86642600000.00000
1988-01-01	94205200000.00000
1989-01-01	99348200000.00000
1990-01-01	119209400000.00000
1991-01-01	119994400000.00000
1992-01-01	126787700000.00000
1993-01-01	112762300000.00000
1994-01-01	124267600000.00000
1995-01-01	173066300000.00000
1996-01-01	173504600000.00000
1997-01-01	169178300000.00000
1998-01-01	176444600000.00000
1999-01-01	180587500000.00000
2000-01-01	188650900000.00000
2001-01-01	185703900000.00000
2002-01-01	191703800000.00000
2003-01-01	229364300000.00000
2004-01-01	273964099999.99997
2005-01-01	298804000000.00000
2006-01-01	343705500000.00000
2007-01-01	407836300000.00000
2008-01-01	466387000000.00000
2009-01-01	368167200000.00000
2010-01-01	424049900000.00000
2011-01-01	489450600000.00000
2012-01-01	481467500000.00000
2013-01-01	488714400000.00000