Year	constant 2010 US$
1970	3795509857.4503
1971	4121730360.96081
1972	4320523955.78026
1973	4468126732.90558
1974	4510351348.80274
1975	4942407049.22434
1976	5211572854.38065
1977	5661419293.45564
1978	6029526069.42787
1979	6086193053.20804
1980	5835073306.02184
1981	6958458954.02685
1982	7540011671.17667
1983	7934413515.55992
1984	8525798948.36759
1985	9124094929.97337
1986	8608400692.00453
1987	8293715704.64597
1988	8738694350.97123
1989	8639338662.59118
1990	8203376395.26089
1991	7424619595.11331
1992	6199116288.11469
1993	5486832302.2969
1994	5905822772.77632
1995	6285212477.49345
1996	6780576152.30461
1997	7199392400.18499
1998	6614258671.18853
1999	7089960767.68923
2000	7454836210.88331
2001	7410040542.62371
2002	7421200709.11053
2003	7274103514.72175
2004	7454526206.25867
2005	8162820913.51844
2006	8543262447.97287
2007	9367409742.56205
2008	9856442037.922
2009	9946498381.37814
2010	10055000000
2011	10451805919.5314
2012	10681209341.7604
2013	10901312625.2505
2014	10507606751.9655
2015	11167916602.4356
2016	10586657931.2471
2017	10473506243.2557