Year	constant 2010 US$
1975	648092049.227952
1976	832387628.268856
1977	984948079.662006
1978	1120323084.83224
1979	1192860489.09652
1980	1292599387.49249
1981	1339762753.34754
1982	1648292665.18583
1983	2225323362.0491
1984	2399497438.97665
1985	2610818810.23781
1986	2857038274.12977
1987	3363851086.97642
1988	3874705492.42659
1989	3739892799.4884
1990	3730154601.92122
1991	3861023529.56659
1992	3683462049.18428
1993	3650413820.70408
1994	3900294358.949
1995	4324850247.58976
1996	4907422154.40537
1997	5542508649.44885
1998	4534129382.24065
1999	5787749887.45903
2000	5834243243.67336
2001	5580784794.9153
2002	5990748050.67619
2003	5571426666.95788
2004	5983100117.89934
2005	7071471971.88622
2006	7293010665.49412
2007	7911556694.52037
2008	7715363562.43618
2009	4808939946.16232
2010	5579516015.07301
2011	7116446560.87267
2012	8386067415.79033
2013	11430242015.387
2014	12450113240.7275
2015	10422799840.7815
2016	10462303845.3252
2017	9319119819.03744
2018	9696828161.34542