Year	current US$
1988	800000.011920929
1989	379999.99523162795
1990	4559999.94277954
1991	1820000.05245209
1992	4030000.2098083496
1993	31239999.7711182
1994	16780000.6866455
1995	11760000.2288818
1996	4360000.1335144
1997	22719999.3133545
1998	15420000.076293899
1999	12850000.3814697
2000	6340000.15258789
2001	9939999.5803833
2002	18989999.7711182
2003	25840000.1525879
2004	14050000.1907349
2005	10430000.3051758
2006	12520000.4577637
2007	29209999.084472697
2008	35310001.373291
2009	-31350000.3814697
2010	27010000.2288818
2011	19799999.237060502
2012	10359999.6566772
2013	6110000.1335144
2014	8180000.305175779
2015	1210000.03814697
2016	1100000.02384186
2017	2630000.1144409203
2018	889999.985694885
2019	850000.023841858
2020	1230000.01907349
2021	6389999.8664856
2022	1620000.00476837