Year	US Dollars, Monthly Level
1960-01-01	20599000000.00000
1961-01-01	21038000000.00000
1962-01-01	21717000000.00000
1963-01-01	23349000000.00000
1964-01-01	26507000000.00000
1965-01-01	27479000000.00000
1966-01-01	30320000000.00000
1967-01-01	31526000000.00000
1968-01-01	34228000000.00000
1969-01-01	38005000000.00000
1970-01-01	43225000000.00000
1971-01-01	44129000000.00000
1972-01-01	49759000000.00000
1973-01-01	71338000000.00000
1974-01-01	98509000000.00000
1975-01-01	107647000000.00000
1976-01-01	115403000000.00000
1977-01-01	121150700000.00000
1978-01-01	143572900000.00000
1979-01-01	181650800000.00000
1980-01-01	220626100000.00000
1981-01-01	233677000000.00000
1982-01-01	212193300000.00000
1983-01-01	200485800000.00000
1984-01-01	218722800000.00000
1985-01-01	212778900000.00000
1986-01-01	227158500000.00000
1987-01-01	254121900000.00000
1988-01-01	322426400000.00000
1989-01-01	363811500000.00000
1990-01-01	393592200000.00000
1991-01-01	421730000000.00000
1992-01-01	448163000000.00000
1993-01-01	465092000000.00000
1994-01-01	512626999999.99994
1995-01-01	584743000000.00000
1996-01-01	625072000000.00000
1997-01-01	689183000000.00000
1998-01-01	682138000000.00000
1999-01-01	695798000000.00000
2000-01-01	781918000000.00000
2001-01-01	729099000000.00000
2002-01-01	693101000000.00000
2003-01-01	724770000000.00000
2004-01-01	818776000000.00000
2005-01-01	905976000000.00000
2006-01-01	1036634000000.00000
2007-01-01	1148198000000.00000
2008-01-01	1287442000000.00000
2009-01-01	1056042999999.99990
2010-01-01	1278265000000.00000
2011-01-01	1480291000000.00000
2012-01-01	1545703000000.00000
2013-01-01	1578441000000.00000
2014-01-01	1621170000000.00000
2015-01-01	1503102000000.00000
2016-01-01	1451022000000.00000
2017-01-01	1546274000000.00000