Year	current US$
1970	250000
1971	109999.999403954
1972	230000.004172325
1973	170000.00178813902
1974	400000.00596046395
1975	810000.002384186
1976	879999.995231628
1977	660000.026226044
1978	500000
1979	1429999.94754791
1980	1600000.02384186
1981	1940000.0572204601
1982	1320000.05245209
1983	1700000.04768372
1984	2400000.09536743
1985	3250000
1986	2920000.07629395
1987	4250000
1988	3279999.97138977
1989	4449999.80926514
1990	5380000.11444092
1991	3289999.96185303
1992	2930000.0667572
1993	4360000.1335144
1994	4510000.228881841
1995	6389999.8664856
1996	4650000.09536743
1997	2609999.89509583
1998	2619999.8855590797
1999	3190000.05722046
2000	3279999.97138977
2001	3559999.94277954
2002	3950000.04768372
2003	5449999.80926514
2004	5250000
2005	6760000.228881841
2006	7250000
2007	11359999.6566772
2008	15840000.1525879
2009	17709999.084472697
2010	19129999.1607666
2011	16569999.6948242
2012	14071852.684021
2013	14411170.959472701
2014	17018871.307373002
2015	15514539.7186279
2016	14250227.9281616
2017	15656530.380249001
2018	17825128.5552979
2019	19275999.0692139
2020	20284999.8474121
2021	18434000.0152588
2022	14279000.2822876