Year	current US$
1968	2420000.07629395
1969	2319999.9332428
1970	2410000.08583069
1971	3279999.97138977
1972	3839999.91416931
1973	3019999.98092651
1974	2740000.00953674
1975	3970000.02861023
1976	2910000.08583069
1977	2430000.0667572
1978	3180000.0667572
1979	4489999.771118159
1980	8609999.65667725
1981	8020000.45776367
1982	5880000.11444092
1983	4929999.82833862
1984	4730000.01907349
1985	4110000.1335143996
1986	4130000.11444092
1987	4889999.8664856
1988	5690000.05722046
1989	8140000.34332275
1990	6610000.1335144
1991	7530000.20980835
1992	3420000.07629395
1993	2369999.8855590797
1994	2799999.95231628
1995	3230000.01907349
1996	4030000.2098083496
1997	4199999.80926514
1998	2099999.90463257
1999	2140000.10490417
2000	1970000.02861023
2001	949999.988079071
2002	340000.00357627904
2003	479999.989271164
2004	1419999.95708466
2005	2170000.07629395
2006	1830000.04291534
2007	1080000.04291534
2008	920000.016689301
2009	1360000.01430511
2010	1889999.98569489
2011	1000000
2012	907294.21377182
2013	1172302.9613494899
2014	698577.344417572
2015	353044.033050537
2016	817665.040493011
2017	958840.489387512
2018	429796.755313873
2019	519291.28170013404
2020	489972.38278389
2021	637170.672416687
2022	703249.216079712