Year	current US$
1972	9999.99977648258
1976	109999.999403954
1977	140000.000596046
1978	170000.00178813902
1979	9999.99977648258
1980	19999.9995529652
1981	1809999.9427795399
1982	189999.99761581398
1983	2220000.02861023
1984	990000.009536743
1985	1460000.03814697
1986	2680000.0667572
1987	3750000
1988	6539999.96185303
1989	11770000.4577637
1990	2890000.10490417
1991	11600000.3814697
1992	5400000.09536743
1993	16969999.3133545
1994	11369999.8855591
1995	12279999.7329712
1996	44740001.6784668
1997	18809999.4659424
1998	32950000.7629395
1999	14159999.8474121
2000	6159999.84741211
2001	8260000.22888184
2002	4530000.20980835
2003	6269999.98092651
2004	11149999.6185303
2005	17860000.6103516
2006	10060000.4196167
2007	6809999.94277954
2008	27209999.084472697
2009	25840000.1525879
2010	29129999.1607666
2011	26309999.4659424
2012	19889999.3896484
2013	33520000.4577637
2014	10199999.8092651
2015	12899999.6185303
2016	10920000.076293899
2017	20350000.3814697
2018	14260000.2288818
2019	10390000.3433228
2020	18409999.8474121
2021	8829999.92370605
2022	5230000.01907349