Year	current US$
1960	435559999.493882
1961	899760001.7078221
1962	823220001.0959058
1963	798709999.743849
1964	667050001.5038998
1965	804839985.6854229
1966	928630010.4204562
1967	821719995.4520906
1968	871139995.3197689
1969	741609998.8054485
1970	1194009995.6821647
1971	1266000000.7376077
1972	1209359999.5486445
1973	1189610006.140544
1974	1276119995.1861055
1975	1328039998.4866369
1976	1396039991.859347
1977	1263890002.3885062
1978	1749909989.0328948
1979	2541309986.6900597
1980	3020370005.963369
1981	3218009995.9261723
1982	3652150000.413877
1983	3535290014.207364
1984	3611490005.370225
1985	3714180028.019476
1986	4273810018.107292
1987	5919830034.628511
1988	6254740007.944403
1989	7087829992.095011
1990	7969290056.882416
1991	10303710049.765192
1992	10510949949.501081
1993	11748530069.753529
1994	11430179963.810366
1995	12403559981.113306
1996	10137720009.043821
1997	8381369991.367688
1998	10217519973.499702
1999	13304659923.678263
2000	11414009991.17829
2001	10727080014.636744
2002	12371380003.83414
2003	13161949951.641272
2004	15453349981.166426
2005	33495810184.255203
2006	19865079830.808563
2007	20085880114.089703
2008	24109320032.224068
2009	17680320146.558807
2010	14978409981.001165
2011	19718229942.113167
2012	15754540150.512016
2013	15537889968.188482
2014	15454480170.819899
2015	13532379960.50902
2016	17746419731.60766
2017	14695569985.734295
2018	14922019975.535557
2019	10719400000.358002
2020	17288889953.542515
2021	16698339923.47494
2022	15364330044.396221