Year	constant 2015 US$
1995	698.5083075695333
1996	757.0165028584238
1997	788.1036816565537
1998	794.6729599650662
1999	843.2898210135145
2000	909.2145015297835
2001	954.3492882687843
2002	1017.6614784727069
2003	1069.7342176952882
2004	1140.6351536193943
2005	1232.5704998131332
2006	1322.6870271743396
2007	1457.2878277545278
2008	1558.2227080403277
2009	1666.6235356816394
2010	1817.357887961056
2011	2024.4689790355494
2012	2177.703070191511
2013	2329.671502357599
2014	2498.975991251898
2015	2676.1325403709357
2016	2871.252675927105
2017	3094.392414171978
2018	3313.1606008765875
2019	3501.0455240376673
2020	3392.5995507424636
2021	3745.8532683524504
2022	3872.0878278057835