Year	constant 2021 US$
1960	75849998.4741211
1961	71860000.6103516
1962	103269996.64306599
1963	56590000.1525879
1964	71529998.7792969
1965	41529998.779296905
1966	70190002.44140631
1967	80580001.8310547
1968	97279998.7792969
1969	108629997.253418
1970	132179992.675781
1971	148690002.44140598
1972	158770004.272461
1973	143179992.67578098
1974	175070007.32421902
1975	188190002.44140598
1976	174029998.779297
1977	164839996.33789098
1978	220360000.61035198
1979	248850006.10351598
1980	280880004.88281304
1981	328350006.10351604
1982	347309997.558594
1983	389130004.88281304
1984	399570007.324219
1985	405170013.42773396
1986	436970001.220703
1987	373549987.792969
1988	361109985.35156304
1989	379230010.986328
1990	425250000
1991	402440002.441406
1992	456500000
1993	331529998.779297
1994	453149993.89648396
1995	381130004.88281304
1996	154479995.727539
1997	87120002.746582
1998	108669998.168945
1999	119669998.168945
2000	156080001.831055
2001	247550003.05175802
2002	278829986.57226604
2003	318649993.89648396
2004	451850006.10351604
2005	449760009.765625
2006	508739990.234375
2007	424559997.558594
2008	460399993.89648396
2009	540489990.234375
2010	661700012.207031
2011	573440002.441406
2012	540679992.675781
2013	567510009.765625
2014	524039978.027344
2015	423269989.013672
2016	847400024.414063
2017	489489990.234375
2018	483970001.220703
2019	605380004.882813
2020	511209991.455078
2021	608239990.234375
2022	600179992.675781