Year	US Dollars, Monthly Level
1960-01-01	5524000000.00000
1961-01-01	6280000000.00000
1962-01-01	5253000000.00000
1963-01-01	6140000000.00000
1964-01-01	7755000000.00000
1965-01-01	6049000000.00000
1966-01-01	4701000000.00000
1967-01-01	4630000000.00000
1968-01-01	975000000.00000
1969-01-01	1962000000.00000
1970-01-01	3274000000.00000
1971-01-01	-1433000000.00000
1972-01-01	-5823000000.00000
1973-01-01	1865000000.00000
1974-01-01	-9486700000.00000
1975-01-01	3804200000.00000
1976-01-01	-14493100000.00000
1977-01-01	-36397800000.00000
1978-01-01	-39520100000.00000
1979-01-01	-37207500000.00000
1980-01-01	-36358000000.00000
1981-01-01	-39675300000.00000
1982-01-01	-42691300000.00000
1983-01-01	-69392500000.00000
1984-01-01	-127641600000.00000
1985-01-01	-139684000000.00000
1986-01-01	-155136900000.00000
1987-01-01	-170320200000.00000
1988-01-01	-137116000000.00002
1989-01-01	-109399400000.00000
1990-01-01	-101718400000.00000
1991-01-01	-66723100000.00000
1992-01-01	-84500000000.00000
1993-01-01	-115566000000.00000
1994-01-01	-150628000000.00000
1995-01-01	-158799000000.00000
1996-01-01	-170219000000.00000
1997-01-01	-181486000000.00000
1998-01-01	-229760000000.00000
1999-01-01	-328819000000.00000
2000-01-01	-436103000000.00000
2001-01-01	-411900000000.00000
2002-01-01	-468264000000.00000
2003-01-01	-532351000000.00000
2004-01-01	-650929000000.00000
2005-01-01	-767478000000.00000
2006-01-01	-817304000000.00000
2007-01-01	-808763000000.00000
2008-01-01	-816198000000.00000
2009-01-01	-503582000000.00000
2010-01-01	-634896000000.00000
2011-01-01	-727765000000.00000
2012-01-01	-730599000000.00000
2013-01-01	-689929000000.00000
2014-01-01	-735194000000.00000
2015-01-01	-745082000000.00000
2016-01-01	-736577000000.00000
2017-01-01	-795690000000.00000