Year	US Dollars, Sum Over Component Sub-periods
1972-01-01	8684110000.00000
1973-01-01	11830110000.00000
1974-01-01	14810510000.00000
1975-01-01	13659200000.00000
1976-01-01	15191590000.00000
1977-01-01	18384830000.00000
1978-01-01	24470390000.00000
1979-01-01	30357550000.00000
1980-01-01	36510200000.00000
1981-01-01	31684040000.00000
1982-01-01	29477520000.00000
1983-01-01	29778180000.00000
1984-01-01	30241210000.00000
1985-01-01	31277110000.00000
1986-01-01	41901650000.00000
1987-01-01	51522560000.00000
1988-01-01	57347150000.00000
1989-01-01	59265670000.00000
1990-01-01	71185310000.00000
1991-01-01	67783070000.00001
1992-01-01	67247660000.00000
1993-01-01	62320830000.00000
1994-01-01	69341330000.00000
1995-01-01	81569750000.00000
1996-01-01	79750880000.00000
1997-01-01	77180250000.00000
1998-01-01	81051160000.00000
1999-01-01	81013260000.00000
2000-01-01	84104120000.00000
2001-01-01	85782190000.00000
2002-01-01	88879380000.00000
2003-01-01	102098540000.00000
2004-01-01	117908920000.00000
2005-01-01	128789130000.00000
2006-01-01	144098130000.00000
2007-01-01	164734270000.00000
2008-01-01	186308060000.00000
2009-01-01	158249860000.00000
2010-01-01	183055860000.00000
2011-01-01	219029270000.00000
2012-01-01	210011940000.00000
2013-01-01	211758910000.00000