Year	current US$
1970	285814484.08090967
1971	328302088.8084713
1972	426937043.6916426
1973	714256196.0936435
1974	1323613715.709078
1975	2122597379.8124142
1976	3024894353.2211323
1977	2799987285.88416
1978	2034957124.5346785
1979	2391388062.0441236
1980	2863504705.8860006
1981	2986772385.1607275
1982	2824657143.6971407
1983	2788230646.721819
1984	2888615961.7484818
1985	3163180847.3826942
1986	4067790885.829079
1987	3364648859.2625875
1988	4028561947.85573
1989	3993939982.10686
1990	5048761575.441037
1991	4604478173.911013
1992	4895646782.42527
1993	3771287288.302847
1994	3221948480.2412405
1995	3786028126.832158
1996	4284198143.2870913
1997	4006694750.29435
1998	4556536880.493325
1999	3764696075.4043655
2000	3233096606.0101013
2001	3757936708.8476067
2002	4208941263.2750626
2003	4959154448.807642
2004	5567403490.44273
2005	6126489832.461889
2006	6971725401.103746
2007	8479053705.113187
2008	10059005165.65199
2009	9589339014.634699
2010	10611382869.068113
2011	12202660401.39075
2012	12095239908.274334
2013	13358728933.148571
2014	15378446224.990725
2015	11777717742.993645
2016	11508381100.97894
2017	11122476746.029388
2018	11543735846.278967
2019	11907583337.833372
2020	11493662495.705658
2021	12341727421.465889
2022	11635984023.330284
2023	12507483082.736996