Year	constant 2015 US$
1995	10219567081.306026
1996	10466023452.960014
1997	10981195016.975466
1998	11421211485.83432
1999	10472173391.718744
2000	11411450522.773685
2001	11787794620.831404
2002	12414736592.228249
2003	13247525079.282803
2004	14050942715.803967
2005	15408567393.543459
2006	16263015758.685265
2007	17516372469.15937
2008	18677644575.46622
2009	18981110473.463604
2010	19359572220.472248
2011	19487887421.748222
2012	19706415921.85747
2013	20049372645.381676
2014	20083366844.06072
2015	20171649254.662365
2016	20672936688.403812
2017	21377122031.992504
2018	22194035051.006824
2019	23127505806.49045
2020	22875147739.311386
2021	24826306960.87291
2022	26085401753.538292
2023	26597789234.908012