Year	current US$
1975	19999.9995529652
1976	1200000.04768372
1977	3309999.94277954
1978	1279999.97138977
1979	4710000.03814697
1980	3170000.07629395
1981	2480000.01907349
1982	1659999.9666214
1983	2950000.04768372
1984	3299999.95231628
1985	4130000.11444092
1986	3309999.94277954
1987	6909999.84741211
1988	6090000.15258789
1989	8289999.961853029
1990	7269999.98092651
1991	11350000.3814697
1992	12359999.6566772
1993	14359999.6566772
1994	18430000.3051758
1995	20090000.1525879
1996	15920000.076293899
1997	3890000.10490417
1998	4909999.84741211
1999	4739999.771118159
2000	4409999.84741211
2001	7210000.03814697
2002	5309999.94277954
2003	10340000.1525879
2004	5179999.82833862
2005	7809999.94277954
2006	10210000.038146999
2007	12109999.6566772
2008	16250000
2009	8500000
2010	8289999.961853029
2011	7610000.1335144
2012	6491407.39440918
2013	7235466.48025513
2014	8124629.02069092
2015	7679502.48718262
2016	9215492.24853516
2017	7203760.14709473
2018	6583131.79016113
2019	5618000.03051758
2020	5520999.90844727
2021	4455999.85122681
2022	5230000.01907349