Year	constant 2015 US$
1995	23725178079.842236
1996	24977466403.670544
1997	26745214441.919334
1998	28317593928.219234
1999	29209507654.045742
2000	33629017452.081852
2001	31039089575.918736
2002	29362231465.203068
2003	29878600917.62792
2004	30502663693.666683
2005	33807562282.921005
2006	34925435530.20886
2007	36527124222.80352
2008	34963205351.40006
2009	32819131941.168938
2010	37762614553.406845
2011	38686257193.08782
2012	38938525277.646805
2013	39320661035.11861
2014	38671122507.611206
2015	38700421937.30975
2016	37239421294.11263
2017	38679848634.278145
2018	42093441361.862724
2019	43724374683.76144
2020	44943216500.1501
2021	47103781999.05666