Year	current US$
1968	159999.99642372102
1969	29999.999329447703
1970	709999.978542328
1971	50000.0007450581
1972	140000.000596046
1973	129999.995231628
1974	29999.999329447703
1975	189999.99761581398
1976	90000.0035762787
1977	810000.002384186
1978	239999.994635582
1979	779999.971389771
1980	310000.002384186
1981	180000.00715255702
1982	150000.005960464
1983	180000.00715255702
1984	70000.0002980232
1985	490000.009536743
1986	819999.992847443
1987	170000.00178813902
1988	119999.997317791
1989	3190000.05722046
1990	660000.026226044
1991	11920000.076293899
1992	20479999.5422363
1993	14850000.3814697
1994	689999.997615814
1995	910000.026226044
1996	250000
1997	259999.990463257
1998	4070000.1716613797
1999	1909999.9666214
2000	3609999.89509583
2001	2140000.10490417
2002	2079999.9237060498
2003	2210000.03814697
2004	1870000.00476837
2005	2420000.07629395
2006	2329999.92370605
2007	2940000.05722046
2008	5940000.05722046
2009	2869999.8855590797
2010	3599999.90463257
2011	4960000.03814697
2012	7070000.17166138
2013	14569999.6948242
2014	10449999.8092651
2015	14729999.5422363
2016	15350000.3814697
2017	21350000.3814697
2018	17739999.7711182
2019	18409999.8474121
2020	19780000.6866455
2021	21389999.3896484
2022	17559999.4659424