Year	current US$
1967	9999.99977648258
1968	19999.9995529652
1969	19999.9995529652
1970	19999.9995529652
1971	9999.99977648258
1972	19999.9995529652
1973	189999.99761581398
1974	239999.994635582
1975	1289999.96185303
1976	449999.988079071
1977	1850000.02384186
1978	1470000.02861023
1979	2930000.0667572
1980	1820000.05245209
1981	1440000.0572204601
1982	1539999.96185303
1983	2710000.03814697
1984	1289999.96185303
1985	4320000.17166138
1986	2359999.89509583
1987	4199999.80926514
1988	2099999.90463257
1989	860000.014305115
1990	4409999.84741211
1991	2880000.1144409203
1992	2160000.08583069
1993	1769999.98092651
1994	7349999.90463257
1995	3680000.0667572
1996	11319999.6948242
1997	4230000.01907349
1998	3180000.0667572
1999	5550000.19073486
2000	6250000
2001	6619999.88555908
2002	8810000.4196167
2003	4460000.03814697
2004	9180000.30517578
2005	9489999.77111816
2006	13260000.2288818
2007	19360000.6103516
2008	23399999.6185303
2009	19610000.6103516
2010	18719999.3133545
2011	19579999.9237061
2012	15619999.8855591
2013	29709999.084472697
2014	18780000.6866455
2015	21629999.1607666
2016	22540000.915527303
2017	13159999.8474121
2018	13270000.4577637
2019	17399999.6185303
2020	17129999.1607666
2021	21629999.1607666
2022	18129999.1607666