Year	current US$
1981	330000.013113022
1982	720000.028610229
1983	720000.028610229
1984	620000.004768372
1985	920000.016689301
1986	449999.988079071
1987	1850000.02384186
1989	550000.011920929
1990	1320000.05245209
1991	720000.028610229
1992	759999.990463257
1993	1320000.05245209
1994	920000.016689301
1995	980000.019073486
1996	430000.00715255697
1997	490000.009536743
1998	680000.007152557
1999	259999.990463257
2000	370000.00476837205
2001	589999.973773956
2002	3130000.1144409203
2003	990000.009536743
2004	59999.9986588955
2005	939999.997615814
2006	2109999.89509583
2007	990000.009536743
2008	1429999.94754791
2009	1559999.9427795399
2010	4039999.96185303
2011	2500000
2012	529999.971389771
2013	2299999.95231628
2014	1129999.99523163
2015	862966.001033783
2016	1267682.31391907
2017	219223.42479229002
2018	1413239.83669281
2019	1120541.9301986701
2020	1774085.87932587
2021	1794000.0295639
2022	1229969.97833252