Year	current US$
1975	19999.99955296516
1976	49999.99888241298
1977	79999.99821186069
1978	99999.99776482569
1979	189999.99761581412
1980	189999.99575316889
1981	159999.9964237213
1982	139999.99873340136
1983	209999.99903142446
1984	219999.99880790705
1985	199999.9955296517
1986	529999.9937415121
1987	410000.0020116569
1988	159999.99828636655
1989	49999.9988824129
1990	390000.0024586913
1991	410000.0075995919
1992	590000.0073015677
1993	1129999.987781047
1994	1609999.9733269205
1995	3629999.9896436944
1996	4960000.0362843275
1997	4989999.9666959075
1998	4250000.031664965
1999	4910000.037401917
2000	3820000.000298022
2001	5040000.064298514
2002	5809999.968856584
2003	15189999.900758268
2004	11749999.837949868
2005	19900000.384077426
2006	36279999.67336654
2007	62049999.535083786
2008	51909999.11911781
2009	39639999.916777015
2010	36920000.12844796
2011	36350000.28833741
2012	40469999.91126356
2013	39460000.46655541
2014	53480000.21465119
2015	35059999.56279991
2016	34199999.70681965
2017	37700000.03464524
2018	39299999.89084898
2019	41379999.53702089