Year	constant 2010 US$
1970	281046137423.075
1971	292482480087.663
1972	322895659376.004
1973	365796923971.133
1974	400412699491.817
1975	437051561241.263
1976	468267069216.365
1977	483498587850.356
1978	509329194157.505
1979	531115266413.355
1980	577281729601.539
1981	570078176009.639
1982	509227306374.932
1983	411945750647.932
1984	419103240627.785
1985	440896309354.021
1986	480531803754.902
1987	486907501143.067
1988	487142975347.764
1989	480664817535.797
1990	471115856435.415
1991	514326259596.791
1992	541893608096.284
1993	569182150874.401
1994	633058505325.135
1995	590237052235.394
1996	618495230423.312
1997	689757933183.003
1998	717085168565.244
1999	668485077529.308
2000	699766404996.428
2001	680510276048.793
2002	655338059786.75
2003	645209430793.467
2004	715074424511.114
2005	771729894235.315
2006	854916180373.334
2007	960223049766.359
2008	1045479961809.27
2009	967660107823.347
2010	1079223287222.76
2011	1173722825036.15
2012	1225091891718.68
2013	1252832405761.93
2014	1226898820978.04
2015	1171556412336.63
2016	1109858138009.46
2017	1108187856565.26
2018	1132136280980.46