Year	US Dollars, Sum Over Component Sub-periods
1972-01-01	2469800000.000000
1973-01-01	3200100000.000000
1974-01-01	3483100000.000000
1975-01-01	4046600000.000000
1976-01-01	4447400000.000000
1977-01-01	4985200000.000000
1978-01-01	6316100000.000000
1979-01-01	6908800000.000000
1980-01-01	7581000000.000000
1981-01-01	7429500000.000000
1982-01-01	7560300000.000000
1983-01-01	8930000000.000000
1984-01-01	8726400000.000000
1985-01-01	9274800000.000000
1986-01-01	12484700000.000000
1987-01-01	15758200000.000000
1988-01-01	16694000000.000000
1989-01-01	17040400000.000002
1990-01-01	20114500000.000000
1991-01-01	20564700000.000000
1992-01-01	21736600000.000000
1993-01-01	22075800000.000000
1994-01-01	23071600000.000000
1995-01-01	26444100000.000000
1996-01-01	26742000000.000000
1997-01-01	26152900000.000000
1998-01-01	28185600000.000000
1999-01-01	29746100000.000000
2000-01-01	30709300000.000000
2001-01-01	29584900000.000000
2002-01-01	30939500000.000000
2003-01-01	36298000000.000000
2004-01-01	43920200000.000000
2005-01-01	49790600000.000000
2006-01-01	54865900000.000000
2007-01-01	65861200000.000000
2008-01-01	77151800000.000000
2009-01-01	76389900000.000000
2010-01-01	83366500000.000000
2011-01-01	95032200000.000000
2012-01-01	90851000000.000000
2013-01-01	95461100000.000000