Year	current US$
1960	334894682.09236366
1961	353437390.31797355
1962	388060887.21898425
1963	397465363.4442544
1964	413758192.23388696
1965	419289007.9330229
1966	432185666.7461622
1967	449034396.77128386
1968	458847289.02417725
1969	476700187.62152755
1970	458404268.76197135
1971	481906450.80823374
1972	577291724.4505104
1973	674535350.152008
1974	748879457.5433826
1975	927901103.0133977
1976	967025163.7981548
1977	1111036713.833
1978	1464483405.3943913
1979	1739271445.2695749
1980	1924639586.1634603
1981	1766034842.4957638
1982	1744188156.6995015
1983	1590193580.5163176
1984	1454929984.5216231
1985	1546793233.877149
1986	2030903449.7430918
1987	2361034849.3971257
1988	2602940400.6609154
1989	2603687670.8339176
1990	3093954988.4063597
1991	3125829219.942997
1992	3344716312.9166965
1993	3180859979.736235
1994	1881026831.5886147
1995	2369479874.709652
1996	2593450483.071696
1997	2445476192.2988143
1998	2802105765.339887
1999	3393482477.3379426
2000	2964619500.183395
2001	3178291925.47716
2002	3588060178.9361587
2003	4686123788.381844
2004	5406279936.20608
2005	6082308541.211322
2006	6528831607.369949
2007	7603256499.994428
2008	9414697518.379824
2009	9333203850.056818
2010	9807542782.094753
2011	11592644774.947311
2012	12243495087.509813
2013	13080707616.412357
2014	13337500892.796871
2015	11293125664.776682
2016	12261728232.19031
2017	13577334630.140785
2018	15387936815.324871
2019	15326465624.908812
2020	17105876297.322412
2021	18719329996.848236
2022	18029664976.70551
2023	19484760471.340645