Year	current US$
1970	219999.998807907
1971	349999.99403953605
1972	340000.00357627904
1973	569999.992847443
1974	2119999.8855590797
1975	3589999.91416931
1976	2730000.01907349
1977	5159999.84741211
1978	3750000
1979	4699999.80926514
1980	7920000.07629395
1981	9439999.5803833
1982	10020000.4577637
1983	12550000.1907349
1984	12640000.3433228
1985	20360000.6103516
1986	15130000.1144409
1987	15069999.6948242
1988	19420000.0762939
1989	18940000.5340576
1990	22389999.3896484
1991	17670000.0762939
1992	30360000.6103516
1993	20069999.6948242
1994	20979999.5422363
1995	22379999.1607666
1996	17959999.084472697
1997	12210000.038146999
1998	12779999.7329712
1999	14359999.6566772
2000	13449999.8092651
2001	19379999.1607666
2002	14010000.2288818
2003	14560000.4196167
2004	18620000.8392334
2005	24090000.1525879
2006	25829999.9237061
2007	51409999.8474121
2008	45849998.4741211
2009	35930000.3051758
2010	42740001.6784668
2011	40020000.4577637
2012	29852664.947509803
2013	43873279.5715332
2014	40216514.5874023
2015	41178203.5827637
2016	38996749.8779297
2017	43286861.4196777
2018	38733085.6323242
2019	40898998.260497995
2020	35014999.3896484
2021	35326999.664306596
2022	35950000.762939505