Year	current US$
1960	974136059.7792523
1961	1101167654.5342913
1962	1267396856.004248
1963	1249303031.751317
1964	1542029986.3316877
1965	1846717265.4182324
1966	2148814844.611703
1967	2219463675.0280423
1968	2750306719.7769246
1969	3321074304.5440435
1970	3629227272.727273
1971	4210386363.636364
1972	5602727272.727273
1973	7487180667.433831
1974	6520795454.545455
1975	7305961742.826779
1976	8158423507.462687
1977	10774847363.552267
1978	14681048237.476809
1979	19293422263.109478
1980	17422661870.503597
1981	14639477244.772448
1982	13826387755.10204
1983	13408676470.588234
1984	10535795042.321646
1985	11270461386.62719
1986	13815377312.560858
1987	15217332662.304983
1988	17615258227.23997
1989	19147331095.258076
1990	24262994411.00602
1991	25445634698.074406
1992	26554149088.308903
1993	23648530023.781216
1994	23321650280.898876
1995	27316909839.68231
1996	30327260758.776897
1997	28908931735.929115
1998	34252191859.794765
1999	34936602784.82749
2000	32146378178.417324
2001	33718548499.8524
2002	36481011591.01418
2003	51249746316.66186
2004	58783110434.21058
2005	51629850807.0848
2006	64791935332.07285
2007	82952527738.91399
2008	84755143035.34998
2009	68883939542.20816
2010	49201712410.700096
2011	38702952507.07206
2012	27905084474.55821
2013	26750208471.66243
2014	25510205514.08893
2015	21075194028.883194
2016	21262017070.98916
2017	23559924565.735336
2018	23638738917.212532
2019	21936248551.294083
2020	22775316169.70434
2021	28580765836.782486
2022	29797579205.375603
2023	33069549977.482937