Year	current US$
1960	-5780000.20980835
1961	4900000.09536743
1962	-3720000.02861023
1963	-6380000.11444092
1964	-9130000.11444092
1965	-9470000.26702881
1966	19999.9995529652
1967	70000.0002980232
1968	-1480000.01907349
1969	-2009999.9904632599
1970	-1990000.0095367401
1971	-2000000
1972	-2880000.1144409203
1973	270000.010728836
1974	259999.990463257
1975	300000.011920929
1976	720000.028610229
1977	1789999.96185303
1978	1850000.02384186
1979	4659999.84741211
1980	7530000.20980835
1981	8680000.30517578
1982	3480000.01907349
1983	5610000.1335144
1984	8670000.07629395
1985	8439999.5803833
1986	16200000.7629395
1987	20159999.8474121
1988	26000000
1989	31889999.3896484
1990	16399999.618530298
1991	27100000.3814697
1992	23729999.5422363
1993	31180000.3051758
1994	17979999.5422363
1995	41709999.0844727
1996	19020000.4577637
1997	22770000.4577637
1998	18850000.3814697
1999	36959999.0844727
2000	37290000.9155273
2001	16510000.2288818
2002	12880000.1144409
2003	11579999.923706101
2004	9260000.22888184
2005	10970000.2670288
2006	7989999.771118159
2007	15090000.1525879
2008	5889999.8664856
2009	9000000
2010	40330001.8310547
2011	9470000.26702881
2012	10100000.3814697
2013	1110000.01430511
2014	4570000.17166138
2015	12340000.1525879
2016	-10420000.076293899
2017	-3210000.03814697
2018	-11500000
2019	-11619999.8855591
2020	1960000.03814697
2021	6960000.03814697
2022	2170000.07629395