Year	constant 2015 US$
1978	2477010064451.731
1979	2643981800846.159
1980	2830436085495.981
1981	2918934461906.922
1982	2998207660290.6333
1983	3083170691739.832
1984	3240084160177.9854
1985	3397453590084.8184
1986	3550670728865.321
1987	3739486054030.8994
1988	3902833508426.1045
1989	4049739724990.123
1990	4164228401621.1655
1991	4279220020644.112
1992	4414007779518.891
1993	4517155240925.723
1994	4690643366892.7295
1995	4814796327761.694
1996	5046137272937.698
1997	5339715042864.14
1998	5516466944278.552
1999	5741789483504.076
2000	6063325192899.328
2001	6349245877560.187
2002	6684412275524.019
2003	7034263104588.478
2004	7567256363454.606
2005	8144130375633.094
2006	8852093472227.57
2007	9743522014589.357
2008	10393958180674.266
2009	10793711222235.69
2010	11541351715003.654
2011	12283097140755.166
2012	13019848922567.453
2013	13755432133818.467
2014	14493730913241.004
2015	15217810318873.457
2016	15951189065572.799
2017	16831380009819.305
2018	17780886741376.04
2019	18657083267516.69
2020	18333704025331.426
2021	19695304668307.645
2022	20499196314551.758
2023	21557186335506.44