Year	current US$
1974	129999.99709427402
1975	370000.001043081
1976	629999.991506338
1977	1130000.00268221
1978	3090000.0277906703
1979	4879999.95239079
1980	6529999.86335635
1981	7350000.14491379
1982	8299999.894574279
1983	9090000.01102686
1984	8939999.94546175
1985	10850000.1523644
1986	13819999.9183416
1987	16579999.631270798
1988	15130000.0268966
1989	12440000.0926107
1990	15160000.020638099
1991	14720000.2484024
1992	18989999.8959154
1993	26509999.9681115
1994	40559999.3597716
1995	61569999.7711927
1996	77639999.4082749
1997	91130000.7086247
1998	90409999.1638213
1999	90260000.7392466
2000	103529999.97884
2001	125720000.138506
2002	190599999.33280098
2003	246640005.286783
2004	289419997.30095303
2005	307669999.333099
2006	388190004.279837
2007	499399997.30885
2008	609789999.702945
2009	465999997.51523095
2010	397470000.371337
2011	397720001.358539
2012	351309997.85289204
2013	353700003.6221
2014	339900002.537295
2015	275139999.009669
2016	250819999.640808
2017	261129997.504875
2018	266559999.64661902
2019	263080000.087619
2020	267120001.44645602
2021	283280001.763254
2022	283300000.04358584