Year	current US$
1960	35890704226.159004
1961	39503688248.92559
1962	43816032276.09907
1963	49515816312.01527
1964	55205448347.86749
1965	61363200386.66949
1966	66940032421.81091
1967	68450424431.32839
1968	75642552476.64833
1969	91797768578.4476
1970	108520368683.82216
1971	121406640765.02274
1972	146324160922.03613
1973	203343433281.3331
1974	279002905758.088
1975	287916361814.2546
1976	332607722095.8694
1977	373267610352.08057
1978	434809034739.8731
1979	571636563602.0679
1980	686901244328.3881
1981	614776923873.9093
1982	584095323680.5746
1983	553325739486.6854
1984	558231411517.5977
1985	579364491650.764
1986	684947548316.0773
1987	844596773322.0791
1988	939977069923.1014
1989	1027973478477.5955
1990	1277224256048.2058
1991	1319069672311.8875
1992	1384459832723.9321
1993	1189210450254.131
1994	1350666735277.5076
1995	1646098233643.475
1996	1681777728959.8665
1997	1655822151656.714
1998	1769378356680.0903
1999	1796252999999.9995
2000	1921166999999.9998
2001	1891176999999.9998
2002	1961103000000
2003	2394644000000
2004	2867719999999.9995
2005	3154156999999.9995
2006	3579469000000
2007	4201389000000.0005
2008	4736010000000.001
2009	3583811000000.0005
2010	4022159000000.0005
2011	4711221000000
2012	4372148999999.9995
2013	4441271000000
2014	4491924000000
2015	3856413000000
2016	3855419000000
2017	4289599999999.9995
2018	4768692000000
2019	4588138000000
2020	4231785000000
2021	5341955000000
2022	6187628999999.999
2023	5777602999999.999