Year	current US$
1966	6470000.095665453
1967	9749999.808147553
1968	9709999.809041623
1969	10520000.189542808
1970	11829999.625682857
1971	10649999.79734417
1972	13349999.651312781
1973	19480000.074952796
1974	29059999.704360943
1975	34400000.154972084
1976	28079999.9237061
1977	33939998.48514796
1978	30179999.861866225
1979	21169999.647885535
1980	34699999.25978478
1981	40669999.05370176
1982	46919999.49701127
1983	42889999.212697096
1984	50959999.30426473
1985	47740001.00977714
1986	65870000.8653104
1987	60970000.11615455
1988	73599999.52465299
1989	68210000.00461937
1990	91939998.27094376
1991	87859999.99940388
1992	96430000.80995256
1993	98359997.42522839
1994	96559998.81774192
1995	80869998.33025041
1996	75879999.22409648
1997	65470001.32501124
1998	71149999.1379679
1999	61299998.236820124
2000	43970000.72523948
2001	34660000.951960675
2002	38749999.20465048
2003	44689999.82438984
2004	45110000.07949766
2005	56919999.245554246
2006	91630000.51490963
2007	81680000.9459258
2008	77629999.54260883
2009	107950001.70171262
2010	107610000.28252593
2011	100499999.4039536
2012	103329999.54186386
2013	107580000.73768198
2014	114219997.38365406
2015	97200000.86165962
2016	82700001.61416824
2017	88080000.32231198
2018	99729999.56458814
2019	147910002.61157754
2020	107610000.48369162
2021	68849999.1334974
2022	88550000.03241003