Year	current US$
1971	240000.00022351736
1972	199999.99739229726
1973	239999.9983608721
1974	169999.99806284887
1975	279999.9937415122
1976	459999.98971819883
1977	459999.98785555357
1978	330000.003799796
1979	1490000.0225752594
1980	1329999.9777227603
1981	4529999.850317837
1982	7110000.161454078
1983	2800000.065937636
1984	8030000.090599058
1985	6199999.984353781
1986	8279999.906197192
1987	7519999.7536838
1988	24540000.312030334
1989	30169999.772682823
1990	34910000.66883862
1991	34310000.589117385
1992	23410000.55894259
1993	12309999.881312251
1994	9879999.853670597
1995	10899999.84763563
1996	8259999.906644227
1997	11299999.995157126
1998	9199999.861419205
1999	10290000.028908264
2000	8549999.965354802
2001	7390000.149607667
2002	8899999.843910336
2003	12699999.812990427
2004	16410000.294446947
2005	160330000.59798402
2006	14050000.023096804
2007	11359999.97146428
2008	13899999.553337693
2009	9519999.96602535
2010	11680000.154301517
2011	15580000.175163161
2012	11709999.941289425
2013	23439999.671652876
2014	47649998.74681238
2015	29420000.41343271
2016	32520000.35345555
2017	27269999.600946937
2018	31529999.59699808
2019	31780000.267550305
2020	36859999.2562085
2021	30350000.12442471
2022	23179999.740794282