Year	current US$
1960	28080796521.678795
1961	27401760639.277756
1962	25944951945.373302
1963	29672080351.776676
1964	33331383594.649223
1965	35745686301.08354
1966	37327709995.9252
1967	39124886812.63238
1968	41119588075.358376
1969	43910881649.67751
1970	51078164500.27387
1971	56196948301.43257
1972	62051137864.03331
1973	85589028381.86717
1974	135704983933.09767
1975	166665390377.61453
1976	172136178431.8493
1977	198322355959.8194
1978	219532461750.4541
1979	267563786704.87714
1980	365440325784.865
1981	406124086349.1048
1982	379306455819.42487
1983	365920223410.2912
1984	364017156396.88
1985	370224082078.3092
1986	354362065467.87396
1987	376088718672.5799
1988	451984225425.1795
1989	494959754731.4373
1990	558632024260.8008
1991	567941579540.572
1992	641413577975.9086
1993	728105450038.4912
1994	823970389198.6659
1995	979051455993.3787
1996	1071713661000.1196
1997	1154203969011.104
1998	1093711035117.1261
1999	1120953875356.628
2000	1322976100476.9126
2001	1319522562218.326
2002	1398597940732.4778
2003	1659511066322.7136
2004	2127934230030.335
2005	2514371873550.7095
2006	2954176511094.976
2007	3581757711998.8267
2008	4369936702868.346
2009	3736476048592.922
2010	4763888839954.737
2011	5851764017040.6455
2012	6188087300834.214
2013	6415737859896.453
2014	6498708446495.546
2015	5786851171393.431
2016	5609100593640.1875
2017	6349005492219.131
2018	7106123877017.007
2019	6938195720866.608
2020	6174746959512.301
2021	8049586702880.514
2022	9058050876428.613
2023	8832738818501.262