Year	constant 2015 US$
1975	1086993396.0649781
1976	1598925757.7352982
1977	2298208886.034631
1978	2421677811.6455426
1979	2841220845.663094
1980	2937509627.8661494
1981	2556176915.304979
1982	2612461109.394234
1983	2673493020.367094
1984	3302560206.695607
1985	3241530342.0529075
1986	2773248037.932282
1987	3016434010.6575866
1988	3576088016.658979
1989	4378499952.120408
1990	4054544412.4052944
1991	3627879074.1379933
1992	4840488876.935396
1993	3422963126.059312
1994	3690618587.5319595
1995	3352834422.15886
1996	3069126900.7009697
1997	3116678228.5420117
1998	2616009090.368884
1999	2901075805.8594213
2000	3149519673.579652
2001	2894917429.0934343
2002	3344628638.216912
2003	3366972409.533309
2004	3929125152.890046
2005	4085091052.612472
2006	4638630900.026993
2007	4844080294.067932
2008	5873989647.512489
2009	4651555090.511749
2010	5022559056.598931
2011	4113077310.09134
2012	3473589441.921438
2013	2565892310.716617
2014	2640073933.0515013
2015	2714249093.291143
2016	3681282260.027357
2017	4603863750.607123
2018	4529667050.050007
2019	4931607220.094202
2020	4940571223.211255
2021	4987475264.512185
2022	5753040764.892639
2023	6373442834.764175