Year	current US$
1975	39999.9991059303
1976	219999.998807907
1977	100000.00149011599
1978	439999.997615814
1979	649999.976158142
1980	620000.004768372
1981	879999.995231628
1982	1490000.0095367401
1983	2069999.9332428002
1984	2230000.01907349
1985	2769999.98092651
1986	2779999.97138977
1987	3049999.95231628
1988	3700000.04768372
1989	3410000.08583069
1990	3890000.10490417
1991	4010000.2288818406
1992	5039999.96185303
1993	5260000.228881841
1994	6329999.92370605
1995	8050000.19073486
1996	9689999.5803833
1997	12479999.5422363
1998	15649999.6185303
1999	13039999.961853001
2000	15869999.8855591
2001	16420000.076293899
2002	24790000.915527303
2003	26530000.6866455
2004	32220001.220703095
2005	35099998.4741211
2006	39220001.220703095
2007	52090000.1525879
2008	65470001.220703095
2009	55029998.779296905
2010	49479999.5422363
2011	49450000.762939505
2012	44770000.4577637
2013	43560001.373291
2014	33130001.068115197
2015	31590000.1525879
2016	28079999.9237061
2017	22709999.084472697
2018	28409999.8474121
2019	25780000.6866455
2020	26100000.3814697
2021	29799999.237060502
2022	26290000.915527303