Year	current US$
1970	500000
1971	670000.016689301
1972	159999.99642372102
1973	860000.014305115
1974	1340000.0333786
1975	1570000.05245209
1976	1049999.95231628
1977	1429999.94754791
1978	1929999.94754791
1979	3640000.10490417
1980	6309999.94277954
1981	3599999.90463257
1982	3009999.99046326
1983	2619999.8855590797
1984	2579999.92370605
1985	3150000.09536743
1986	4010000.2288818406
1987	4280000.20980835
1988	5269999.98092651
1989	3599999.90463257
1990	4539999.96185303
1991	5019999.98092651
1992	4389999.8664856
1993	3180000.0667572
1994	3220000.02861023
1995	3210000.03814697
1996	4369999.88555908
1997	1610000.01430511
1998	1639999.98569489
1999	1179999.94754791
2000	709999.978542328
2001	829999.983310699
2002	730000.019073486
2003	1120000.00476837
2004	970000.028610229
2005	709999.978542328
2006	930000.007152557
2007	769999.980926514
2008	1100000.02384186
2009	3349999.90463257
2010	740000.009536743
2011	1059999.9427795399
2012	1117243.17073822
2013	1152074.33700562
2014	1048303.9617538501
2015	1101130.00869751
2016	1280475.13961792
2017	1869959.9504470802
2018	944584.786891937
2019	1264000.05817413
2020	1062000.03623962
2021	959999.978542328
2022	517000.019550323