Year	current US$
1968	769999.980926514
1969	170000.00178813902
1970	1070000.05245209
1971	1379999.99523163
1972	1259999.9904632599
1973	1690000.0572204601
1974	1970000.02861023
1975	2390000.10490417
1976	2740000.00953674
1977	1879999.99523163
1978	1919999.95708466
1979	2680000.0667572
1980	3210000.03814697
1981	4190000.05722046
1982	4000000
1983	3660000.08583069
1984	2559999.94277954
1985	3329999.92370605
1986	4320000.17166138
1987	3200000.04768372
1988	3059999.94277954
1989	5199999.80926514
1990	3509999.99046326
1991	4010000.2288818406
1992	3839999.91416931
1993	2690000.05722046
1994	2059999.94277954
1995	2490000.00953674
1996	4139999.8664856004
1997	4159999.8474121103
1998	2470000.02861023
1999	1269999.98092651
2000	689999.997615814
2001	479999.989271164
2002	860000.014305115
2003	639999.985694885
2004	1320000.05245209
2005	879999.995231628
2006	2180000.0667572
2007	2509999.99046326
2008	1580000.04291534
2009	1899999.97615814
2010	2190000.05722046
2011	910000.026226044
2012	800005.8531761171
2013	874186.992645264
2014	1520777.3447036701
2015	823709.070682526
2016	1144264.57881927
2017	1114730.1197052
2018	724081.814289093
2019	1047490.00072479
2020	1595583.79650116
2021	1511963.48667145
2022	2107055.90248108