Year	current US$
1970	277499994.28
1971	289943771.37
1972	311392210
1973	339420727.73
1974	1795642870.894
1975	2951650861.162
1976	3458672010.508
1977	5354387402.767
1978	7036891022.688701
1979	9278191849.307402
1980	13014683900.4362
1981	13315140199.6999
1982	14343021991.2879
1983	15289890680.070099
1984	15273640682.674898
1985	14493379526.444399
1986	14782015565.8074
1987	17447744110.4971
1988	17468341975.5791
1989	18958987913.4632
1990	21881611030.222195
1991	25814881022.516003
1992	30505227321.621
1993	31873551113.868
1994	40305915298.652
1995	40976963318.65166
1996	44342928729.68242
1997	52596022975.674484
1998	50664895826.74617
1999	54496055785.881165
2000	61086398240.22206
2001	69218670719.45721
2002	80177459802.6493
2003	102050463805.38184
2004	115386725149.94958
2005	129500090023.88734
2006	151997864850.30093
2007	185788607873.45123
2008	213846026823.88312
2009	202823942971.91672
2010	222246320996.09558
2011	246829798228.57965
2012	260550643502.6139
2013	273413073864.50775
2014	295672851348.8293
2015	293449468779.1368
2016	285710442315.8383
2017	317018702997.40546
2018	341060160404.7886
2019	353216555564.80255
2020	357430028431.01764
2021	407699123900.30536
2022	445154178476.4288