Year	constant 2015 US$
1995	2346.393720814699
1996	2408.1963181946803
1997	2513.1585174922043
1998	2593.8442807068122
1999	2358.684463166324
2000	2486.0818741355474
2001	2529.174363779508
2002	2764.1325787792907
2003	2844.6538860925075
2004	3213.201987846908
2005	3299.030698339942
2006	3660.9876981396956
2007	3958.163729292257
2008	4153.653988928371
2009	4030.8209810137178
2010	4022.368408720648
2011	4111.483589152791
2012	4061.2017512984794
2013	4012.0913839952455
2014	4026.9864316971116
2015	4021.200795550488
2016	4118.7458385355585
2017	4232.186534579187
2018	4387.912733861344
2019	4573.372985364684
2020	4517.800848360145
2021	4917.290182155388
2022	5242.105455064695
2023	5323.723147580065