Year	current US$
1970	920000.016689301
1971	680000.007152557
1972	589999.973773956
1973	850000.023841858
1974	1090000.0333786
1975	1450000.04768372
1976	1450000.04768372
1977	1399999.97615814
1978	1779999.97138977
1979	2710000.03814697
1980	2309999.94277954
1981	3200000.04768372
1982	2750000
1983	3279999.97138977
1984	3569999.9332428
1985	3329999.92370605
1986	4420000.07629395
1987	6179999.82833862
1988	4199999.80926514
1989	6909999.84741211
1990	7369999.88555908
1991	9310000.4196167
1992	10630000.1144409
1993	7690000.05722046
1994	8819999.69482422
1995	8149999.61853027
1996	7630000.11444092
1997	4610000.1335144
1998	4079999.92370605
1999	3160000.08583069
2000	2900000.09536743
2001	2940000.05722046
2002	2789999.96185303
2003	2599999.90463257
2004	2269999.98092651
2005	2849999.90463257
2006	3329999.92370605
2007	2559999.94277954
2008	2960000.03814697
2009	3069999.9332428
2010	3349999.90463257
2011	3569999.9332428
2012	4792860.03112793
2013	1931914.21031952
2014	4441213.1309509305
2015	3958415.74668884
2016	3608030.31921387
2017	2982000.11253357
2018	5601493.83544922
2019	4677999.97329712
2020	2874000.07247925
2021	3901000.02288818
2022	5105000.01907349