Year	Billions of United States Dollars
1960-01-01	331.18050
1961-01-01	341.47500
1962-01-01	362.55775
1963-01-01	382.03475
1964-01-01	410.63150
1965-01-01	442.97325
1966-01-01	479.91900
1967-01-01	506.68525
1968-01-01	556.85250
1969-01-01	603.63850
1970-01-01	646.72450
1971-01-01	699.93725
1972-01-01	768.15325
1973-01-01	849.57450
1974-01-01	930.16125
1975-01-01	1030.54675
1976-01-01	1147.66550
1977-01-01	1273.97525
1978-01-01	1422.25225
1979-01-01	1585.41950
1980-01-01	1750.66750
1981-01-01	1933.95100
1982-01-01	2071.25625
1983-01-01	2281.60450
1984-01-01	2492.34025
1985-01-01	2712.83000
1986-01-01	2886.27800
1987-01-01	3076.27925
1988-01-01	3330.01250
1989-01-01	3576.75750
1990-01-01	3808.99450
1991-01-01	3943.44875
1992-01-01	4197.55925
1993-01-01	4451.98400
1994-01-01	4720.96500
1995-01-01	4962.59050
1996-01-01	5244.59550
1997-01-01	5536.79025
1998-01-01	5877.24800
1999-01-01	6279.07825
2000-01-01	6762.14375
2001-01-01	7065.63425
2002-01-01	7342.68600
2003-01-01	7723.10900
2004-01-01	8212.66225
2005-01-01	8747.11775
2006-01-01	9260.34475
2007-01-01	9706.43050
2008-01-01	9976.33025
2009-01-01	9842.20875
2010-01-01	10185.83550
2011-01-01	10641.10900
2012-01-01	11006.81400
2013-01-01	11317.21025
2014-01-01	11824.03225
2015-01-01	12294.52975
2016-01-01	12766.89225
2017-01-01	13321.40700