Year	current US$
1960	61912318.54995341
1961	44445572.725073725
1962	55789331.27335728
1963	79267523.66008422
1964	102820694.3765064
1965	61617237.20517605
1966	78964840.12554997
1967	80487491.47452438
1968	162785613.52532765
1969	131943093.41692713
1970	96959814.8952991
1971	59922294.10476472
1972	83324179.77335483
1973	63260157.8516262
1974	224756757.5216281
1975	5599275.171956518
1976	256120027.52335805
1977	394416093.0976764
1978	-72233811.69892952
1979	-279708271.71681696
1980	-628551057.3893437
1981	-599489000.6347554
1982	-219715928.83839616
1983	84762231.07954969
1984	925034589.5855953
1985	1003198620.8932161
1986	853046354.0696667
1987	384312611.85452706
1988	266427821.4132951
1989	290588103.4775211
1990	494261431.99979275
1991	317468262.3600686
1992	423133527.2829248
1993	390620488.3802814
1994	932626995.2875183
1995	804798797.6626415
1996	597310043.664537
1997	418272325.0724214
1998	140294991.9084488
1999	298433531.8989422
2000	102138413.18203047
2001	306880479.209811
2002	1231376582.7907445
2003	897241870.8407924
2004	508835024.05910295
2005	225231795.7069559
2006	503475149.7880689
2007	-129143420.8987341
2008	29551575.086065967
2009	1407176644.2712936
2010	-165525047.86322683
2011	2145426098.918748
2012	-122015133.8127155
2013	-13629370.772713931
2014	1286280537.2428596
2015	913378408.8284397
2016	1122162840.1209126
2017	1226197749.358808
2018	-379874598.1021271
2019	398869444.0191381
2020	27924584.44155535
2021	-379621920.82520956
2022	-3072134069.623071
2023	-2951415103.8860083