Year	current US$
1970	370000.00476837205
1971	150000.005960464
1972	280000.001192093
1973	509999.99046325695
1974	1289999.96185303
1975	810000.002384186
1976	779999.971389771
1977	1419999.95708466
1978	1980000.01907349
1979	3099999.90463257
1980	3559999.94277954
1981	3130000.1144409203
1982	3690000.05722046
1983	4019999.98092651
1984	5170000.07629395
1985	4860000.1335144
1986	4289999.96185303
1987	5909999.84741211
1988	6840000.15258789
1989	7389999.8664856
1990	7920000.07629395
1991	7389999.8664856
1992	8229999.54223633
1993	8319999.694824221
1994	9750000
1995	7289999.96185303
1996	8470000.26702881
1997	4360000.1335144
1998	4610000.1335144
1999	4449999.80926514
2000	3680000.0667572
2001	6039999.96185303
2002	3259999.99046326
2003	4199999.80926514
2004	5429999.82833862
2005	4860000.1335144
2006	6320000.17166138
2007	7710000.03814697
2008	6039999.96185303
2009	7360000.1335144
2010	8020000.45776367
2011	7980000.01907349
2012	6462714.19525146
2013	7497534.75189209
2014	6851517.20046997
2015	5825466.15600586
2016	7799685.95504761
2017	8075079.917907709
2018	8253790.855407709
2019	8531000.1373291
2020	7026000.02288818
2021	6682000.16021729
2022	6715000.15258789