Year	current US$
1981	19999.9995529652
1982	680000.007152557
1983	449999.988079071
1984	300000.011920929
1985	689999.997615814
1986	649999.976158142
1987	3380000.1144409203
1988	10659999.8474121
1989	10050000.1907349
1990	17950000.762939498
1991	25639999.3896484
1992	3990000.00953674
1993	2920000.07629395
1994	8640000.34332275
1995	7909999.84741211
1996	6050000.19073486
1997	2519999.98092651
1998	2329999.92370605
1999	2309999.94277954
2000	1889999.98569489
2001	1730000.01907349
2002	3670000.07629395
2003	3309999.94277954
2004	6980000.01907349
2005	7909999.84741211
2006	5510000.228881841
2007	8800000.19073486
2008	7679999.82833862
2009	10970000.2670288
2010	7050000.19073486
2011	7090000.15258789
2012	15609999.6566772
2013	60849998.4741211
2014	56509998.3215332
2015	97410003.6621094
2016	60779998.779296905
2017	87669998.1689453
2018	87940002.44140631
2019	72849998.4741211
2020	56619998.9318848
2021	66870002.746582
2022	58560001.373291