Year	current US$
1960	306000000
1961	301000000
1962	333000000
1963	409000000
1964	418000000
1965	379500000
1966	454990000
1967	420000000
1968	491920000
1969	493390000
1970	568100000
1971	752095434.777804
1972	975883557.076037
1973	1160211834.57653
1974	1237633576.91076
1975	1383459717.88937
1976	1187999175.10079
1977	1648897138.20623
1978	1841512129.10122
1979	2071708724.95516
1980	2959892457.55668
1981	4074353726.2441
1982	833890593.80924
1983	3912918651.64416
1984	7272038649.66628
1985	4906395430.57996
1986	5669819248.22331
1987	12464081799.9972
1988	5278683303.95231
1989	6329105106.84154
1990	9862895477.37264
1991	17725518316.6688
1992	18941965806.3718
1993	25109605164.3518
1994	6278238053.264
1995	16846808910.2877
1996	19432723330.5341
1997	28797466855.6517
1998	31799031085.6572
1999	31782190512.9215
2000	35508841926.0105
2001	44740742121.561
2002	50594446759.7124
2003	58955641644.4202
2004	64140696567.4203
2005	74054137348.6702
2006	76270546023.3582
2007	87109236213.9551
2008	95126103498.6517
2009	99589209742.5811
2010	120264990360.51
2011	143990797078.067
2012	160413365459.751
2013	175432415284.167
2014	190923190993.428
2015	173457747218.176
2016	173535819121.603
2017	170458364362.543
2018	171444902467.495
2019	177176653572.28
2020	191769269928.007
2021	200775455680.768
2022	194124913250.538
2023	206351156443.452