Year	current US$
1968	500000
1969	490000.009536743
1970	479999.989271164
1971	680000.007152557
1972	949999.988079071
1973	1389999.98569489
1974	1639999.98569489
1975	2250000
1976	2170000.07629395
1977	2559999.94277954
1978	3160000.08583069
1979	1679999.94754791
1980	810000.002384186
1981	3980000.01907349
1982	3059999.94277954
1983	3460000.03814697
1984	5090000.15258789
1985	10710000.038146999
1986	16209999.0844727
1987	16479999.5422363
1988	15529999.7329712
1989	12619999.8855591
1990	11229999.5422363
1991	10560000.4196167
1992	8439999.5803833
1993	7170000.07629395
1994	5719999.79019165
1995	3069999.9332428
1996	5260000.228881841
1997	3980000.01907349
1998	5659999.84741211
1999	5880000.11444092
2000	4250000
2001	2380000.1144409203
2002	3710000.03814697
2003	5210000.03814697
2004	5719999.79019165
2005	5190000.05722046
2006	4960000.03814697
2007	4960000.03814697
2008	4579999.92370605
2009	6059999.94277954
2010	7889999.8664856
2011	7360000.1335144
2012	5254707.33642578
2013	4721356.8687439
2014	3877276.65901184
2015	3473930.5973053
2016	3564138.41247559
2017	3913320.30296326
2018	2978817.46292114
2019	9797477.72216797
2020	4805159.56878662
2021	3918069.60105896
2022	7131574.6307373