Year	US Dollars, Monthly Level
1960-01-01	4050777363.307290
1961-01-01	4340411178.730770
1962-01-01	4602489792.379960
1963-01-01	4988356832.967441
1964-01-01	5801533308.520101
1965-01-01	6417564089.411640
1966-01-01	6764013476.214070
1967-01-01	7348963708.993740
1968-01-01	8325985232.923770
1969-01-01	9984606986.322050
1970-01-01	11814086153.512900
1971-01-01	13966483862.385800
1972-01-01	16809624690.865300
1973-01-01	24082152948.271103
1974-01-01	32862893066.908900
1975-01-01	34909365776.194695
1976-01-01	40010942434.808200
1977-01-01	43805970562.148800
1978-01-01	50300215327.948800
1979-01-01	63802240953.627000
1980-01-01	73622852547.802100
1981-01-01	68676507047.246410
1982-01-01	66188324560.960690
1983-01-01	64765704299.390500
1984-01-01	65732148459.040210
1985-01-01	68320064230.409200
1986-01-01	80369008795.539200
1987-01-01	93005061492.457800
1988-01-01	102799299316.227000
1989-01-01	108136403381.672000
1990-01-01	131738599877.758990
1991-01-01	133632132181.748000
1992-01-01	139870959422.106020
1993-01-01	138883971049.291020
1994-01-01	158704893423.272000
1995-01-01	192697520450.080000
1996-01-01	215234803152.900020
1997-01-01	207493245636.657000
1998-01-01	212195501854.657000
1999-01-01	217693983049.582000
2000-01-01	232902012823.304020
2001-01-01	231155045106.778000
2002-01-01	243814223377.180020
2003-01-01	296116583170.294000
2004-01-01	355646168193.621030
2005-01-01	405136340781.067000
2006-01-01	465120654635.386960
2007-01-01	551625058377.296000
2008-01-01	637927344437.129000
2009-01-01	498000056619.365970
2010-01-01	572918650343.213000
2011-01-01	667824949535.121100
2012-01-01	654888057209.513100
2013-01-01	670763088388.643100
2014-01-01	673200752681.118900
2015-01-01	571058948201.454000
2016-01-01	569899594517.195100
2017-01-01	653003499883.609000