Year	Billions of United States Dollars
1960-01-01	27.04450
1961-01-01	27.60200
1962-01-01	29.06575
1963-01-01	31.07450
1964-01-01	35.01925
1965-01-01	37.14625
1966-01-01	40.91975
1967-01-01	43.46650
1968-01-01	47.90600
1969-01-01	51.92200
1970-01-01	59.70850
1971-01-01	62.96275
1972-01-01	70.84325
1973-01-01	95.26950
1974-01-01	126.65000
1975-01-01	138.70625
1976-01-01	149.51500
1977-01-01	159.34850
1978-01-01	186.88325
1979-01-01	230.12950
1980-01-01	280.77175
1981-01-01	305.23900
1982-01-01	283.20975
1983-01-01	276.99625
1984-01-01	302.38050
1985-01-01	303.21050
1986-01-01	320.99825
1987-01-01	363.94300
1988-01-01	444.60075
1989-01-01	504.28925
1990-01-01	551.87300
1991-01-01	594.93050
1992-01-01	633.05275
1993-01-01	654.79925
1994-01-01	720.93725
1995-01-01	812.81025
1996-01-01	867.58925
1997-01-01	953.80275
1998-01-01	952.97900
1999-01-01	992.77775
2000-01-01	1096.25525
2001-01-01	1024.63575
2002-01-01	998.74100
2003-01-01	1036.17700
2004-01-01	1177.63100
2005-01-01	1305.22500
2006-01-01	1472.61300
2007-01-01	1660.85375
2008-01-01	1837.05500
2009-01-01	1581.99575
2010-01-01	1846.28050
2011-01-01	2102.99475
2012-01-01	2191.27975
2013-01-01	2273.42825
2014-01-01	2371.02650
2015-01-01	2265.04650
2016-01-01	2217.57550
2017-01-01	2350.17500