Year	constant 2015 US$
1991	1745.683365067578
1992	1748.393171096041
1993	1717.8764644516334
1994	1716.6836535677996
1995	1790.1328131106993
1996	1855.6764207959172
1997	1849.6748011783716
1998	1872.978510558303
1999	1899.177186602394
2000	1893.3532018700378
2001	1909.2243208604546
2002	2219.260358144377
2003	2280.0355410754546
2004	2330.662676976541
2005	2440.296186788406
2006	2525.936074958316
2007	2611.038529518063
2008	2624.573985700088
2009	2736.881688107203
2010	2805.6198082042315
2011	2850.8909305948614
2012	3021.2963035768817
2013	3102.1491684601137
2014	3171.0399565167913
2015	3260.177108347363
2016	3248.5562399680207
2017	3371.085127510436
2018	3511.717410982795
2019	3485.986149394719
2020	3557.6572207035283
2021	3590.62646990121
2022	3605.813578506848