Year	current US$
1970	3870000.0047683697
1971	4719999.961554999
1972	6039999.96557832
1973	7359999.99940395
1974	8719999.88332391
1975	14299999.9113381
1976	13980000.0153482
1977	20499999.9087304
1978	25030000.1055002
1979	34969999.5219707
1980	42699999.9731779
1981	44889999.4045496
1982	44370000.0941753
1983	53080000.475049
1984	51830000.728368804
1985	71730000.1382828
1986	76049999.3115664
1987	83399999.961257
1988	95130000.7402897
1989	117070000.886917
1990	128630001.04762599
1991	141379999.056458
1992	204789999.66383
1993	204989996.492863
1994	227169998.884201
1995	222909999.370575
1996	198049999.535084
1997	98410000.20504001
1998	88629999.8760223
1999	103229999.661446
2000	107649999.320507
2001	119789998.05450399
2002	112399999.976158
2003	130190000.05722
2004	135490000.367165
2005	180690000.295639
2006	208720000.743866
2007	332800000.667572
2008	351779996.51431996
2009	343709999.024868
2010	366939998.68631405
2011	351960001.64747196
2012	309820114.970207
2013	364572023.630142
2014	384164219.379425
2015	394374345.302582
2016	390190138.101578
2017	417888411.045074
2018	408087937.116623
2019	431239994.764328
2020	424311002.492905
2021	377775000.09536695
2022	374624001.9798281