Year	constant 2015 US$
1988	745600329.1447572
1989	657818732.1560488
1990	834229352.2736908
1991	704836852.3232154
1992	626903010.2846822
1993	925716694.2515354
1994	757331142.7594589
1995	1281062670.0077145
1996	1698392324.2283852
1997	1820946295.8352852
1998	1941077475.5033822
1999	2381827641.8302245
2000	2580052822.022028
2001	2501294662.8937054
2002	2410003394.675143
2003	2664368081.2987766
2004	2684992980.4627576
2005	2523553646.659643
2006	3004202326.224945
2007	2876170042.683973
2008	3257532905.889306
2009	3452360239.524221
2010	4339676787.4600315
2011	4196125270.928427
2012	3869442737.259303
2013	4314317483.688207
2014	4223512811.108828
2015	4481319815.997256
2016	5098194651.356346
2017	5730757882.1149435
2018	6014098889.964944
2019	6298217922.004081
2020	5147018597.329966
2021	5267020598.753941
2022	5526008240.087744
2023	5504505166.661377