Year	current US$
1970	81171229.7598506
1971	91385971.3829904
1972	109882221.791094
1973	172677331.728724
1974	718317142.982583
1975	881030533.032537
1976	1056742171.3346
1977	1025120829.83167
1978	938460905.046232
1979	1999131110.60514
1980	2188857885.03028
1981	2228694172.27911
1982	1771146993.15066
1983	2155371452.68553
1984	2227378646.92811
1985	2736001207.5475
1986	1604898071.1841
1987	2308701953.3684
1988	2085517948.29725
1989	3057669427.87538
1990	4325467106.90208
1991	2730161138.77149
1992	2952058690.7641
1993	2926315573.58541
1994	2785823551.81416
1995	3227791258.46647
1996	4199799524.05786
1997	3852318719.33101
1998	2431341028.51026
1999	3622620594.01266
2000	6595976619.05823
2001	5520658128.99353
2002	5239172207.25151
2003	5481792400.4282
2004	6819821485.50681
2005	9994213016.57031
2006	11384186720.7868
2007	11789521756.5906
2008	17155119369.9708
2009	11631785778.8266
2010	16622802253.6333
2011	24512422642.1826
2012	26200230054.799
2013	26750401003.4038
2014	24480230535.6639
2015	12642457552.3854
2016	10391498116.3514
2017	13149768438.3866
2018	18915275579.7964
2019	16576148940.3589
2020	10853059442.814
2021	19705937312.3956