Year	current US$
1960	140000.000596046
1961	50000.0007450581
1962	100000.00149011599
1963	109999.999403954
1964	119999.997317791
1965	100000.00149011599
1966	119999.997317791
1967	170000.00178813902
1968	200000.00298023198
1969	189999.99761581398
1970	670000.016689301
1971	79999.9982118607
1972	2579999.92370605
1973	29999.999329447703
1974	569999.992847443
1975	29999.999329447703
1976	9999.99977648258
1977	-19999.9995529652
1981	9999.99977648258
1990	209999.993443489
1991	2789999.96185303
1992	3329999.92370605
1993	3460000.03814697
1994	3150000.09536743
1995	4230000.01907349
1996	2119999.8855590797
1997	5309999.94277954
1998	3400000.09536743
1999	1190000.0572204601
2000	2559999.94277954
2001	7980000.01907349
2002	4940000.05722046
2003	8970000.26702881
2004	8479999.54223633
2005	8479999.54223633
2006	8100000.38146973
2007	15329999.923706101
2008	11529999.7329712
2009	10930000.3051758
2010	8180000.305175779
2011	18149999.6185303
2012	15609999.6566772
2013	10060000.4196167
2014	3690000.05722046
2015	4050000.1907348596
2016	5010000.228881841
2017	2369999.8855590797
2018	2769999.98092651
2019	2910000.08583069
2020	3079999.92370605
2021	2000000
2022	2900000.09536743