Year	current US$
1980	10380000.1144409
1981	8430000.30517578
1982	6929999.82833862
1983	6030000.20980835
1984	6190000.05722046
1985	6869999.88555908
1986	1779999.97138977
1987	25319999.6948242
1988	15130000.1144409
1989	1309999.9427795399
1990	4530000.20980835
1991	2329999.92370605
1992	18139999.3896484
1993	10529999.7329712
1994	2089999.9141693101
1995	10920000.076293899
1996	7780000.20980835
1997	5340000.15258789
1998	6480000.01907349
1999	-3819999.9332428
2000	2859999.89509583
2001	319999.99284744303
2002	159999.99642372102
2003	-2309999.94277954
2004	-4590000.15258789
2005	-1340000.0333786
2006	-2549999.95231628
2007	-3839999.91416931
2008	-1519999.98092651
2009	2049999.9523162802
2010	-3380000.1144409203
2011	-3509999.99046326
2012	-2910000.08583069
2013	-1990000.0095367401
2014	-3440000.05722046
2015	-2690000.05722046
2016	-1149999.97615814
2017	-2809999.94277954
2018	479999.989271164
2019	660000.026226044
2020	600000.023841858
2021	439999.997615814
2022	119999.997317791