Year	current US$
1960	16629999.160766602
1961	15470000.2670288
1962	9979999.54223633
1963	10590000.1525879
1964	12159999.8474121
1965	13899999.6185303
1966	10350000.3814697
1967	15130000.1144409
1968	16620000.839233398
1969	13529999.7329712
1970	14510000.2288818
1971	11939999.5803833
1972	18979999.5422363
1973	18370000.8392334
1974	22170000.0762939
1975	30069999.6948242
1976	50060001.373291
1977	42240001.6784668
1978	32080001.831054702
1979	41380001.0681152
1980	41959999.0844727
1981	38569999.6948242
1982	43810001.373291
1983	57000000
1984	48580001.8310547
1985	76019996.6430664
1986	122330001.831055
1987	238369995.117188
1988	211100006.10351598
1989	238500000
1990	185910003.66210902
1991	191179992.67578098
1992	198389999.38964802
1993	218850006.10351598
1994	196029998.779297
1995	205350006.10351598
1996	182839996.33789098
1997	256299987.792969
1998	230289993.28613302
1999	280899993.89648396
2000	260700012.207031
2001	227160003.66210902
2002	253240005.493164
2003	259309997.558594
2004	233509994.506836
2005	269480010.986328
2006	500670013.42773396
2007	465029998.779297
2008	539500000
2009	380559997.558594
2010	402059997.558594
2011	353570007.324219
2012	304890014.64843804
2013	496600006.10351604
2014	279839996.33789104
2015	411290008.544922
2016	265450012.207031
2017	367010009.765625
2018	399420013.42773396
2019	388250000
2020	473029998.779297
2021	512549987.792969
2022	437750000