Year	current US$
1970	439999.997615814
1971	1799999.95231628
1972	479999.989271164
1973	230000.004172325
1974	460000.00834465
1975	9350000.38146973
1976	10000000
1977	22319999.6948242
1978	9439999.5803833
1979	3980000.01907349
1980	4360000.1335144
1981	17790000.915527303
1982	9439999.5803833
1983	4480000.01907349
1984	4420000.07629395
1985	2390000.10490417
1986	1659999.9666214
1987	1750000
1988	1460000.03814697
1989	1169999.95708466
1990	1519999.98092651
1991	6500000
1992	18149999.6185303
1993	9020000.45776367
1994	16059999.465942401
1995	22600000.3814697
1996	29659999.8474121
1997	19129999.1607666
1998	23190000.5340576
1999	11710000.038146999
2000	18840000.1525879
2001	36229999.5422363
2002	30069999.6948242
2003	38759998.3215332
2004	52319999.6948242
2005	56099998.4741211
2006	61049999.237060495
2007	47740001.6784668
2008	40610000.6103516
2009	45439998.626709
2010	21159999.8474121
2011	18479999.5422363
2012	7780000.20980835
2013	620000.004768372
2014	-709999.978542328
2015	-490000.009536743
2016	750000
2017	180000.00715255702
2018	219999.998807907
2019	529999.971389771
2020	270000.010728836
2021	270000.010728836
2022	330000.013113022