Year	constant 2010 US$
1965	6160720502.01477
1966	6683426603.29005
1967	6996490831.93994
1968	7039468493.86314
1969	7145278763.06943
1970	7572918891.23552
1971	7806311200.02777
1972	8146424675.81538
1973	8722663631.29734
1974	8889735895.55694
1975	8942609990.39273
1976	9933922504.83065
1977	11184671364.2701
1978	11320170454.6791
1979	10177776647.8368
1980	9041226196.58854
1981	8059935229.20248
1982	7318885614.66619
1983	7411595430.66332
1984	7622808154.2859
1985	7781523080.56044
1986	7727738804.23794
1987	7763710551.8946
1988	7869395229.42668
1989	8019345241.69362
1990	10183605189.2974
1991	10245131764.6372
1992	11010912225.0023
1993	11653567350.4418
1994	12370833645.0116
1995	13141850959.5528
1996	13351451130.2465
1997	13529215298.8478
1998	13428860827.0883
1999	13772653015.1277
2000	14083158333.6037
2001	14270744108.2747
2002	14378185506.1782
2003	14491078454.2299
2004	14720261996.4603
2005	15277310331.0653
2006	16001454822.0576
2007	17127957285.2711
2008	17050881520.3643
2009	15910177510.7743
2010	16097790000
2011	16348390333.6625
2012	16876590511.0316
2013	17461024826.2403
2014	17432698493.308
2015	17952189725.8146
2016	18303895744.5174
2017	18700054782.3958
2018	19210837070.0399