Year	current US$
1980	500000
1981	670000.016689301
1982	730000.019073486
1983	1500000
1984	1179999.94754791
1985	1659999.9666214
1986	6139999.8664856
1987	2329999.92370605
1988	3470000.02861023
1989	4730000.01907349
1990	7409999.84741211
1991	5800000.19073486
1992	8189999.580383301
1993	5500000
1994	4889999.8664856
1995	4670000.07629395
1996	4250000
1997	3140000.10490417
1998	1460000.03814697
1999	1809999.9427795399
2000	1620000.00476837
2001	1360000.01430511
2002	2390000.10490417
2003	1960000.03814697
2004	3279999.97138977
2005	3690000.05722046
2006	6340000.15258789
2007	2880000.1144409203
2008	1360000.01430511
2009	1399999.97615814
2010	1149999.97615814
2011	100000.00149011599
2012	1139999.98569489
2013	1059999.9427795399
2014	629999.995231628
2015	620000.004768372
2016	1129999.99523163
2017	1110000.01430511