Year	current US$
1987	200000.00298023198
1988	209999.993443489
1989	439999.997615814
1990	1080000.04291534
1991	209999.993443489
1992	790000.021457672
1993	610000.014305115
1994	1110000.01430511
1995	1480000.01907349
1996	1279999.97138977
1997	1350000.02384186
1998	1509999.9904632599
1999	1490000.0095367401
2000	1159999.9666214
2001	819999.992847443
2002	910000.026226044
2003	1059999.9427795399
2004	2309999.94277954
2005	1669999.95708466
2006	1700000.04768372
2007	1409999.9666214
2008	1990000.0095367401
2009	1179999.94754791
2010	1500000
2011	1049999.95231628
2012	1029999.97138977
2013	1159999.9666214
2014	850000.023841858
2015	620000.004768372
2016	540000.021457672
2017	560000.002384186
2018	370000.00476837205
2019	319999.99284744303
2020	340000.00357627904
2021	239999.994635582
2022	70000.0002980232