Year	current US$
1968	1340000.0333786
1969	639999.985694885
1970	560000.002384186
1971	400000.00596046395
1972	560000.002384186
1973	759999.990463257
1974	1110000.01430511
1975	2579999.92370605
1976	2660000.08583069
1977	2119999.8855590797
1978	2369999.8855590797
1979	2819999.9332428
1980	3170000.07629395
1981	1940000.0572204601
1982	2319999.9332428
1983	1659999.9666214
1984	1019999.98092651
1985	1370000.00476837
1986	1940000.0572204601
1987	2750000
1988	3119999.8855590797
1989	4530000.20980835
1990	720000.028610229
1991	949999.988079071
1992	1200000.04768372
1993	2589999.91416931
1994	1360000.01430511
1995	370000.00476837205
1996	1490000.0095367401
1997	3940000.05722046
1998	4429999.82833862
1999	469999.998807907
2000	1759999.9904632599
2001	370000.00476837205
2002	790000.021457672
2003	560000.002384186
2004	750000
2005	949999.988079071
2006	980000.019073486
2007	680000.007152557
2008	1120000.00476837
2009	920000.016689301
2010	769999.980926514
2011	460000.00834465
2012	607765.376567841
2013	925855.994224548
2014	1093415.97557068
2015	461105.94272613496
2016	423082.292079926
2017	331256.50882720895
2018	552489.459514618
2019	761240.005493164
2020	413850.66509246797
2021	907940.328121185
2022	748113.751411438