Year	current US$
1960	450901963.1676899
1961	493486149.65511185
1962	551227366.7336465
1963	592229565.9361933
1964	610983615.1894068
1965	703892660.8351212
1966	727810775.6766622
1967	705157898.6255736
1968	681835932.1462858
1969	670400908.9470621
1970	697544565.8563563
1971	715998491.366411
1972	789432968.3943737
1973	1024180263.1579479
1974	1197526839.8201566
1975	1171881975.373391
1976	1193049232.6163595
1977	1416560590.5383623
1978	1868372402.1171
1979	2284981421.5426054
1980	2848183392.3779325
1981	2432352732.4604564
1982	2322778188.886138
1983	1912864618.5618074
1984	1520385261.0409656
1985	1615429422.122206
1986	1916940826.9747546
1987	2330741402.7714868
1988	2400920733.052965
1989	2325530210.422519
1990	3704815450.5385394
1991	3492809542.6404467
1992	3560399238.433532
1993	3183341531.5093594
1994	2080708841.482854
1995	2433815449.31487
1996	2548780387.183382
1997	2429995983.9249544
1998	2830501763.639918
1999	2691680113.3496356
2000	2377007018.88906
2001	2598135765.7007256
2002	2976857032.4521146
2003	3626048353.2479067
2004	4078086294.181793
2005	4800822846.123353
2006	5174468112.087726
2007	6268508863.389353
2008	8271846228.148664
2009	8789955123.186998
2010	9388232639.811817
2011	10498352726.868216
2012	10641553296.905699
2013	11486351866.30553
2014	12367447389.793686
2015	11251753005.739748
2016	11659352907.07632
2017	12635866691.121735
2018	14661252368.63064
2019	14837251346.221067
2020	15873269146.458834
2021	17442093209.90223
2022	15797910612.37539
2023	16476093635.178173