Year	current US$
1968	1139676125.7464786
1969	1195380046.5407324
1970	1348095964.8342085
1971	1440538131.5982654
1972	1897897594.5412383
1973	2005216842.6441019
1974	2366258485.7411604
1975	2778228151.3699627
1976	2827568434.5797477
1977	3027722440.155392
1978	2977113038.3149047
1979	2821432715.0759687
1980	2636318501.6518016
1981	2852058132.183408
1982	3016199639.1975865
1983	3159812639.268808
1984	2613129269.264678
1985	2159836339.6216154
1986	2235994961.252707
1987	2771295069.2178216
1988	3540127982.7099643
1989	4054974695.7780366
1990	4291812579.0737348
1991	4226028118.697127
1992	3960973459.8353996
1993	4568823470.016216
1994	4715123394.415388
1995	5813794959.810841
1996	6455651371.839539
1997	7146409890.922791
1998	7544582403.353903
1999	8203087445.5981655
2000	8598297980.505539
2001	8661083975.478569
2002	8772091617.181692
2003	9308287899.258907
2004	9955574837.92683
2005	10400134914.046717
2006	11251206383.847782
2007	11949909264.446077
2008	12697695989.243635
2009	12093691210.067217
2010	12344214750.50929
2011	12978185191.327831
2012	14147593262.22584
2013	14330833727.794825
2014	14129105053.547768
2015	13597633922.884449
2016	13358039418.004854
2017	13874120460.344606
2018	14700979693.758753
2019	15469599207.239529
2020	13826989992.711277
2021	14686930600.124556
2022	16273257146.78211
2023	17385207465.168148