Year	constant 2015 US$
1972	45676747902.941925
1973	46039354104.402405
1974	51356108810.715576
1975	56857132516.39621
1976	57977860280.777664
1977	71083938313.67355
1978	79081319186.02126
1979	75522495151.59491
1980	85691787673.34546
1981	94505817227.3739
1982	94910938429.7815
1983	99755131284.89629
1984	103623317036.17764
1985	109372761667.41238
1986	98189442121.74771
1987	81174822886.91077
1988	81250742069.25296
1989	86525970184.04001
1990	81525188835.29938
1991	74230680835.50114
1992	73013946250.32817
1993	69726989325.13574
1994	72628666594.32025
1995	72901993121.67389
1996	68524497381.19871
1997	64821237950.15822
1998	73224496687.62631
1999	72238037762.01773
2000	75176840764.25845
2001	85093973484.10686
2002	92499670780.03404
2003	97876686737.22153
2004	104616948836.82928
2005	110273431977.46951
2006	114859119670.46872
2007	123050657572.37173
2008	133609439115.09012
2009	147250249016.3841
2010	157097648653.08264
2011	161525815932.15698
2012	174452131033.22815
2013	188000942172.9657
2014	200278123569.95486
2015	210271245221.03085
2016	213089772473.49368
2017	213127984280.20294
2018	214877449409.18018
2019	215276626357.10022
2020	201638209278.61234
2021	203244761899.89746
2022	210414673719.75763
2023	227427830236.62115