Year	constant 2015 US$
1995	1783.7863024528367
1996	1865.4197729790324
1997	1946.3406442458565
1998	2000.29842649313
1999	2052.129168157152
2000	2132.054080934752
2001	2189.9366854404825
2002	2261.9337075792455
2003	2376.295472938557
2004	2522.0485417838754
2005	2674.9941530794777
2006	2889.4086555737563
2007	3136.1142178889163
2008	3299.9568608733352
2009	3396.1007567097754
2010	3625.6358609330837
2011	3882.4869593518197
2012	4050.1859139259286
2013	4211.370593206699
2014	4394.591405203365
2015	4536.617654465982
2016	4707.360052216351
2017	4914.300675944683
2018	5092.930696038321
2019	5254.414046844031
2020	5131.477823787795
2021	5470.448505121775
2022	5639.606877548268