Year	current US$
1968	1700000.04768372
1970	-100000.00149011599
1971	1000000
1972	1070000.05245209
1973	-200000.00298023198
1974	-270000.010728836
1975	-319999.99284744303
1976	-300000.011920929
1978	259999.990463257
1979	-200000.00298023198
1980	16350000.381469702
1981	14000000
1982	7000000
1983	17469999.3133545
1984	15149999.6185303
1985	8960000.03814697
1986	14789999.961853001
1987	19170000.0762939
1988	31620000.8392334
1989	27270000.4577637
1990	25889999.3896484
1991	10470000.2670288
1992	25110000.6103516
1993	26489999.7711182
1994	36360000.6103516
1995	30559999.4659424
1996	41250000
1997	39700000.762939505
1998	39889999.3896484
1999	40270000.4577637
2000	31069999.6948242
2001	27090000.1525879
2002	33229999.5422363
2003	46819999.6948242
2004	58630001.0681152
2005	57610000.6103516
2006	74269996.6430664
2007	102629997.253418
2008	305820007.324219
2009	102449996.94824201
2010	59689998.626709
2011	55299999.237060495
2012	80550003.0517578
2013	50680000.3051758
2014	40540000.9155273
2015	-8960000.03814697
2016	-709999.978542328
2017	10090000.1525879
2018	4869999.88555908
2019	45759998.3215332
2020	64940002.44140631
2021	92349998.4741211
2022	136949996.94824198