Year	constant 2015 US$
1990	10888320789.534504
1991	10093475470.49847
1992	8064683529.344805
1993	7185634203.54216
1994	7027552311.19899
1995	6865918204.142368
1996	6776657863.253627
1997	7257802874.867555
1998	7751334157.136702
1999	8200909690.499869
2000	8692965468.150024
2001	8980271589.716887
2002	8881571194.542149
2003	8896718257.456318
2004	8882059817.5274
2005	8914308435.29674
2006	8900729788.759563
2007	8855317806.561077
2008	8883657540.29985
2009	8876538432.712362
2010	9153494753.59114
2011	8876461996.440735
2012	8819977538.810986
2013	8643353884.475063
2014	8472394053.022731
2015	8423966108.229378
2016	8451924509.34719
2017	8374040391.94757
2018	9612198155.736395
2019	9656132786.064386
2020	9479395750.426788
2021	9411996033.446348
2022	9392974335.54298
2023	9404806730.30177