Year	current US$
1960	21840000.418946102
1961	27150000.8385628
1962	29140000.551939
1963	35049999.7325242
1964	36809999.2983043
1965	37900000.045076
1966	39680000.560358204
1967	35729999.1827458
1968	11019999.9231845
1969	7449999.8986721
1970	5469999.98018146
1971	9059999.97071922
1972	6929999.90843236
1973	11190000.2416223
1974	10990000.0393391
1975	24789999.943226602
1976	15340000.2010167
1977	17919999.986887
1978	18350000.5155802
1979	73079999.666661
1980	46419998.9009649
1981	60370000.634342395
1982	30779999.5429814
1983	24750000.1657754
1984	33219999.717548497
1985	33710000.8651614
1986	34669999.3275106
1987	27560000.602155898
1988	51270000.576973
1989	39830000.6985664
1990	56409999.8623133
1991	101600000.84340599
1992	49849999.3365258
1993	41960000.0586361
1994	62279999.714344695
1995	35690000.2174079
1996	38420000.1880527
1997	52379999.2501736
1998	38829999.655485205
1999	38620000.5151331
2000	49709999.8295307
2001	48620000.2357364
2002	65740000.2293289
2003	223849996.05827
2004	407590006.876737
2005	1398710020.4527402
2006	304540000.557899
2007	128969998.38948199
2008	808819978.237152
2009	247509999.155998
2010	229669995.464385
2011	277950003.34456605
2012	328219996.43742996
2013	891609995.521605
2014	908420000.910759
2015	1006400006.65747
2016	1348420006.81162
2017	1248569979.23926
2018	1170790008.4927702
2019	1337740001.91689
2020	1026179981.47011
2021	687910000.085831
2022	333069998.2941152