Year	current US$
1979	930000.007152557
1980	500000
1981	430000.00715255697
1982	2130000.1144409203
1983	2299999.95231628
1984	5710000.03814697
1985	4989999.771118159
1986	11460000.038146999
1987	14350000.3814697
1988	20020000.4577637
1989	22250000
1990	35049999.237060495
1991	26969999.3133545
1992	26129999.1607666
1993	17540000.915527303
1994	20250000
1995	27829999.9237061
1996	24010000.2288818
1997	19370000.8392334
1998	16770000.4577637
1999	16950000.762939498
2000	13250000
2001	14630000.1144409
2002	9079999.92370605
2003	12670000.076293899
2004	12550000.1907349
2005	13989999.7711182
2006	25219999.3133545
2007	19950000.762939498
2008	19989999.7711182
2009	17459999.084472697
2010	18489999.7711182
2011	18209999.084472697
2012	15329999.923706101
2013	18309999.4659424
2014	11510000.2288818
2015	7099999.90463257
2016	4539999.96185303
2017	4019999.98092651
2018	3819999.9332428
2019	2380000.1144409203
2020	1700000.04768372
2021	1769999.98092651
2022	779999.971389771