Year	US Dollars, Sum Over Component Sub-periods
1975-01-01	7318170000.00000
1976-01-01	7102660000.00000
1977-01-01	7342230000.00000
1978-01-01	7566480000.00000
1979-01-01	10915010000.00000
1980-01-01	15004760000.00000
1981-01-01	13654210000.00000
1982-01-01	12888770000.00000
1983-01-01	12334260000.00000
1984-01-01	11939610000.00000
1985-01-01	12643160000.00000
1986-01-01	14545300000.00000
1987-01-01	17959990000.00000
1988-01-01	20971060000.00000
1989-01-01	23453660000.00000
1990-01-01	25719240000.00000
1991-01-01	20596660000.00000
1992-01-01	20068620000.00000
1993-01-01	17110390000.00000
1994-01-01	21915200000.00000
1995-01-01	27904840000.00000
1996-01-01	29131510000.00000
1997-01-01	29391750000.00000
1998-01-01	30590390000.00000
1999-01-01	30161000000.00000
2000-01-01	32351630000.00000
2001-01-01	30646670000.00000
2002-01-01	32332720000.00000
2003-01-01	40138420000.00000
2004-01-01	48812780000.00000
2005-01-01	56217880000.00000
2006-01-01	66287039999.99999
2007-01-01	77501150000.00000
2008-01-01	86406320000.00000
2009-01-01	58447310000.00000
2010-01-01	66115780000.00000
2011-01-01	80805620000.00000
2012-01-01	73588770000.00000
2013-01-01	74435240000.00000