Year	current US$
1960	649999.976158142
1961	3380000.1144409203
1962	2150000.09536743
1963	2809999.94277954
1964	6630000.11444092
1965	15810000.4196167
1966	16409999.847412098
1967	9609999.65667725
1968	6840000.15258789
1969	5570000.17166138
1970	7139999.8664856
1971	12020000.4577637
1972	10840000.1525879
1973	5079999.92370605
1974	1679999.94754791
1975	9699999.80926514
1976	6539999.96185303
1977	2299999.95231628
1978	5800000.19073486
1979	12939999.5803833
1980	1350000.02384186
1981	-2930000.0667572
1982	-750000
1983	-889999.985694885
1984	-610000.014305115
1985	1279999.97138977
1986	-2619999.8855590797
1987	439999.997615814
1988	7889999.8664856
1989	8619999.88555908
1990	8069999.694824221
1991	5519999.98092651
1992	14989999.7711182
1993	16059999.465942401
1994	21639999.3896484
1995	15609999.6566772
1996	17420000.0762939
1997	18510000.2288818
1998	11609999.6566772
1999	16459999.0844727
2000	10630000.1144409
2001	44139999.3896484
2002	92569999.6948242
2003	82099998.4741211
2004	75129997.253418
2005	99230003.3569336
2006	117989997.86377
2007	217149993.89648402
2008	294019989.013672
2009	337339996.33789104
2010	469760009.765625
2011	539299987.792969
2012	515539978.027344
2013	548690002.441406
2014	529390014.648438
2015	362070007.324219
2016	502839996.33789104
2017	478429992.675781
2018	438049987.792969
2019	409230010.986328
2020	373130004.88281304
2021	619119995.117188
2022	407059997.558594