Year	current US$
1960	214356766.04321715
1961	228304057.78759727
1962	258446416.15791756
1963	257156868.27774203
1964	278080690.8346953
1965	293642669.7043438
1966	288383247.4886675
1967	279612358.2260487
1968	280812189.64122564
1969	278717991.675153
1970	283227681.3124592
1971	295920200.99241763
1972	347722119.76586205
1973	395631757.95749587
1974	394343181.57884663
1975	557655961.4470243
1976	590450588.0619774
1977	654468757.117881
1978	769909440.419584
1981	837235812.3739176
1982	780373058.5126754
1983	777921250.1110963
1984	838115584.4410439
1985	1007174355.4787533
1986	1037378322.3170229
1987	1072108461.4656636
1988	1343726199.0141363
1989	1288139957.4498217
1990	1697349639.278363
1991	1740419710.883437
1992	1751433560.6488998
1993	1354304808.7579398
1994	1109500702.0617852
1995	1316241754.5117133
1996	1333196677.4158418
1997	1334659718.961577
1998	1574704983.3013895
1999	1431141633.7948196
2000	1205207405.8864026
2001	1492710953.0095146
2002	2658202029.4965487
2003	2026673335.3287897
2004	3120696774.0570626
2005	4324076980.453698
2006	5495621272.406001
2007	5830987410.293564
2008	6938389282.569595
2009	6411397484.076659
2010	6986023535.373981
2011	8273593971.391229
2012	8120793982.387112
2013	8852578919.962896
2014	9524089163.395306
2015	8028843909.8172245
2016	7611262908.469068
2017	8016681111.517261
2018	8693775845.447916
2019	8608991106.299618
2020	9644670738.650082
2021	9639330050.913664
2022	8932881998.885721
2023	9809878503.62228