Year	current US$
1968	889999.985694885
1969	910000.026226044
1970	1110000.01430511
1971	1740000.0095367401
1972	1909999.9666214
1973	2180000.0667572
1974	1580000.04291534
1975	1879999.99523163
1976	1200000.04768372
1977	870000.004768372
1978	1289999.96185303
1979	1360000.01430511
1980	1720000.02861023
1981	1629999.99523163
1982	1519999.98092651
1983	2240000.00953674
1984	2269999.98092651
1985	2059999.94277954
1986	2630000.1144409203
1987	2440000.05722046
1988	1549999.95231628
1989	1230000.01907349
1990	1120000.00476837
1991	1070000.05245209
1992	699999.988079071
1993	769999.980926514
1994	200000.00298023198
1995	1789999.96185303
1996	1370000.00476837
1997	-1529999.97138977
1998	899999.976158142
1999	-200000.00298023198
2000	19999.9995529652
2001	200000.00298023198
2002	209999.993443489
2003	400000.00596046395
2004	550000.011920929
2005	720000.028610229
2006	819999.992847443
2007	850000.023841858
2008	930000.007152557
2009	579999.983310699
2010	529999.971389771
2011	330000.013113022
2012	349999.99403953605
2013	536606.0137748721
2014	378535.270690918
2015	335570.365190506
2016	181063.666939735
2017	109670.616686344
2018	167269.88554000898
2019	114880.00303506899
2020	295257.98559188796
2021	168929.725885391
2022	404296.24915123003