Year	current US$
1981	850000.023841858
1982	579999.983310699
1983	360000.01430511504
1984	250000
1985	699999.988079071
1986	779999.971389771
1987	2759999.99046326
1988	579999.983310699
1989	1070000.05245209
1990	1210000.03814697
1991	430000.00715255697
1992	360000.01430511504
1993	270000.010728836
1994	150000.005960464
1995	879999.995231628
1996	300000.011920929
1997	-289999.99165535
1998	-280000.001192093
1999	-280000.001192093
2000	730000.019073486
2001	180000.00715255702
2002	90000.0035762787
2003	1250000
2004	3650000.09536743
2005	1129999.99523163
2006	1289999.96185303
2007	7280000.20980835
2008	1019999.98092651
2009	829999.983310699
2010	1759999.9904632599
2011	1669999.95708466
2012	959999.978542328
2013	50000.0007450581
2014	1200000.04768372
2015	647055.983543396
2016	2301292.89627075
2017	1658352.97107697
2018	2755859.85183716
2019	3261587.3813629197
2020	1045630.81264496
2021	1439000.0104904198
2022	2675209.99908447