Year	constant 2010 US$
1970	3490494814.21897
1971	3791335850.47948
1972	3973767329.34926
1973	4107583898.51612
1974	4145010016.86572
1975	4548491895.81828
1976	4799100795.87126
1977	5204247093.12317
1978	5529888930.08088
1979	5583797488.60613
1980	5407714617.01305
1981	6427041753.79223
1982	6870300870.50962
1983	7192661768.52355
1984	7835710575.09274
1985	8861921966.18644
1986	7813231449.35765
1987	7024278520.58754
1988	7715829904.25422
1989	8496666046.00214
1990	8188065287.13226
1991	6505777346.34938
1992	3821064620.76798
1993	2718478587.77718
1994	1967025314.76474
1995	2061504813.84532
1996	2825620335.31639
1997	2987055705.78691
1998	3114399134.66739
1999	3292880475.93294
2000	3607930224.66198
2001	3505554029.20498
2002	3192509789.07518
2003	2980437858.30179
2004	3195618171.98486
2005	3853492374.25636
2006	5553276473.76961
2007	5687338020.55165
2008	6120305678.74527
2009	5733462412.11466
2010	5562000000
2011	5833732828.55598
2012	6184679286.1006
2013	6572725797.7285
2014	6396249864.79178
2015	7395945916.71174
2016	7877243915.63007
2017	8140955110.87074