Year	current US$
1960	92767737736.99939
1961	97307406353.49301
1962	104922062033.78543
1963	115416484253.92238
1964	129269754732.14839
1965	141574979217.72073
1966	156870771081.0576
1967	165418264292.02887
1968	185818281422.21362
1969	213036243445.74225
1970	245685557019.50162
1971	273094518582.68283
1972	324374201618.1333
1973	446127438555.00415
1974	637430889077.2954
1975	642277634301.7388
1976	738659589847.0809
1977	836596978107.6047
1978	968564997054.624
1979	1240278198524.5708
1980	1480193670003.629
1981	1429467991157.7783
1982	1348255197946.7217
1983	1331144382833.6477
1984	1464482111186.5732
1985	1498230991170.9292
1986	1681819537635.7625
1987	1996504469789.3105
1988	2281972803852.4683
1989	2476717411826.732
1990	2829780588497.541
1991	2875187827123.2314
1992	3029584046157.409
1993	2923139931059.9277
1994	3345884884253.511
1995	3963940464943.424
1996	4131870728188.054
1997	4228216835957.036
1998	4231732691695.9614
1999	4457065000000.001
2000	5003786000000.001
2001	4785350000000.001
2002	4931941000000.001
2003	5722650000000.001
2004	6829389000000.001
2005	7657399000000.001
2006	8679319000000
2007	9763734000000
2008	10984488000000
2009	8344953000000
2010	9780718000000
2011	11492448000000
2012	11417027000000
2013	11442486000000
2014	11515675000000
2015	10148122000000
2016	9970066000000
2017	10920722000000
2018	11949521000000
2019	11595277000000
2020	10781510000000
2021	13296508000000
2022	15165852000000.002
2023	14201013000000.002