Year	current US$
1970	139999.99873340124
1971	199999.99739229714
1972	209999.999031424
1973	479999.99485909875
1974	1090000.0128895044
1975	370000.00290572626
1976	759999.9904632572
1977	1349999.994039535
1978	2250000.0186264506
1979	2709999.999031424
1980	2469999.995082617
1981	3139999.9819695954
1982	3840000.03710389
1983	4499999.998137359
1984	7479999.892413611
1985	5389999.950304623
1986	6359999.917447569
1987	10660000.054165717
1988	14350000.0294298
1989	15109999.816864729
1990	11209999.887272727
1991	20119999.99172985
1992	16530000.023543831
1993	21280000.086873766
1994	14099999.655038118
1995	31299999.836832255
1996	12559999.8421967
1997	14360000.189393766
1998	22559999.73975122
1999	11370000.191032892
2000	11240000.126883386
2001	5709999.939426782
2002	7899999.732151623
2003	11449999.68260526
2004	12769999.682903295
2005	7320000.056177383
2006	9979999.912902704
2007	8709999.853745101
2008	6500000.098720191
2009	7539999.907836318
2010	5729999.864473937
2011	8609999.885782605
2012	8810000.170022244
2013	9529999.915510418
2014	8689999.761059877
2015	7580000.11369586
2016	5980000.03397465
2017	3890000.0732392087
2018	4149999.8979270463
2019	3030000.0105053186
2020	3400000.030174854
2021	3389999.9484419846
2022	5219999.8665601