Year	US Dollars, Monthly Level
1969-01-01	1206550000000.0000
1970-01-01	1514660000000.0000
1971-01-01	1674810000000.0000
1972-01-01	1835310000000.0000
1973-01-01	2067870000000.0000
1974-01-01	2175080000000.0000
1975-01-01	2087630000000.0000
1976-01-01	2329050000000.0000
1977-01-01	2454080000000.0000
1978-01-01	2614200000000.0000
1979-01-01	2811240000000.0000
1980-01-01	2903580000000.0000
1981-01-01	3009000000000.0000
1982-01-01	3006560000000.0000
1983-01-01	3105550000000.0000
1984-01-01	3447800000000.0000
1985-01-01	3632030000000.0000
1986-01-01	3763610000000.0000
1987-01-01	4021910000000.0000
1988-01-01	4369180000000.0005
1989-01-01	4708780000000.0000
1990-01-01	5009140000000.0000
1991-01-01	5264790000000.0000
1992-01-01	5683110000000.0000
1993-01-01	5956980000000.0000
1994-01-01	6515010000000.0000
1995-01-01	7176640000000.0000
1996-01-01	7769200000000.0000
1997-01-01	8627500000000.0000
1998-01-01	9065870000000.0000
1999-01-01	9600970000000.0000
2000-01-01	10852110000000.0000
2001-01-01	10963120000000.0000
2002-01-01	11445520000000.0000
2003-01-01	12171500000000.0000
2004-01-01	13522860000000.0000
2005-01-01	14596050000000.0000
2006-01-01	15959060000000.0000
2007-01-01	17177000000000.0000
2008-01-01	17670470000000.0000
2009-01-01	15816560000000.0000
2010-01-01	17763450000000.0000
2011-01-01	18882830000000.0000
2012-01-01	19395810000000.0000
2013-01-01	19967400000000.0000