Year	current US$
1970	3929999.9028444267
1971	5150000.16987324
1972	8669999.878853563
1973	13680000.05744397
1974	22620000.027120113
1975	29380000.105127744
1976	31360000.297427177
1977	30389999.64855615
1978	47389999.81805682
1979	64559999.16791916
1980	70010000.63866383
1981	42830000.2962351
1982	58310001.09016901
1983	60159999.743103944
1984	55239999.43025407
1985	57349999.88786879
1986	63379998.8292157
1987	80909999.1526455
1988	82890000.90584156
1989	86430000.48585238
1990	121730000.21092589
1991	127289999.98606737
1992	176820001.01543957
1993	148919999.7112154
1994	242229999.30940574
1995	245230002.04563135
1996	252270001.8789619
1997	264090001.61848962
1998	251969996.87887722
1999	331340003.81082284
2000	279450003.2551586
2001	253459999.61346388
2002	276740000.9520353
2003	368479999.94084233
2004	319830002.64503044
2005	377860002.58103025
2006	334960000.4423408
2007	551999991.223216
2008	415070005.93096006
2009	296649998.46182775
2010	371809995.1483309
2011	428160000.4900246
2012	512219996.1021538
2013	1025669973.9899491
2014	487149998.6480923
2015	460279995.04469323
2016	485239996.9808754
2017	440939997.1123786
2018	429779998.9841879
2019	407250001.8812715
2020	365829999.94792044
2021	367460001.07005256
2022	939909980.1331756