Year	current US$
1968	209999.993443489
1975	109999.999403954
1976	319999.99284744303
1977	280000.001192093
1978	219999.998807907
1979	330000.013113022
1980	569999.992847443
1981	469999.998807907
1982	330000.013113022
1983	360000.01430511504
1984	649999.976158142
1985	800000.011920929
1986	1370000.00476837
1987	519999.980926514
1988	1129999.99523163
1989	2660000.08583069
1990	1279999.97138977
1991	1080000.04291534
1992	1029999.97138977
1993	769999.980926514
1994	889999.985694885
1995	1200000.04768372
1996	1090000.0333786
1997	939999.997615814
1998	649999.976158142
1999	540000.021457672
2000	310000.002384186
2001	159999.99642372102
2002	50000.0007450581
2003	310000.002384186
2004	319999.99284744303
2005	689999.997615814
2006	469999.998807907
2007	469999.998807907
2008	939999.997615814
2009	1129999.99523163
2010	1340000.0333786
2011	589999.973773956
2012	445865.988731384
2013	382840.99102020304
2014	626351.892948151
2015	445185.124874115
2016	535781.8603515631
2017	640220.761299133
2018	444661.766290665
2019	623350.024223328
2020	1426703.81069183
2021	1296705.72280884
2022	2677098.75106812