Year	current US$
1980	109999.999403954
1981	280000.001192093
1982	9999.99977648258
1983	9999.99977648258
1984	29999.999329447703
1985	2150000.09536743
1986	170000.00178813902
1987	2069999.9332428002
1988	589999.973773956
1989	3549999.95231628
1990	16059999.465942401
1991	12659999.8474121
1992	12819999.6948242
1993	9569999.69482422
1994	9550000.19073486
1995	16239999.7711182
1996	14470000.2670288
1997	17209999.084472697
1998	14649999.6185303
1999	13220000.2670288
2000	10939999.5803833
2001	9170000.07629395
2002	4050000.1907348596
2003	2910000.08583069
2004	3480000.01907349
2005	6579999.92370605
2006	7420000.07629395
2007	9510000.22888184
2008	9590000.15258789
2009	7150000.09536743
2010	5610000.1335144
2011	2809999.94277954
2012	4050000.1907348596
2013	6329999.92370605
2014	7309999.94277954
2015	2319999.9332428
2016	1970000.02861023
2017	660000.026226044
2018	569999.992847443
2019	-379999.99523162795
2020	430000.00715255697
2021	219999.998807907
2022	150000.005960464