Year	constant 2015 US$
1991	1982.4196503171518
1992	2170.428551507119
1993	2051.0139777836757
1994	2044.5418805910508
1995	2072.2879157208754
1996	2014.3247245037405
1997	2085.429222782097
1998	2079.5029696033444
1999	2145.365668018049
2000	2060.2275397824455
2001	2127.369247314817
2002	2097.216218350823
2003	2074.678927967578
2004	2089.216496439389
2005	2195.54793100999
2006	2280.468544377143
2007	2451.3628189908213
2008	2577.5537319083205
2009	2615.698491406529
2010	2888.383163293132
2011	3132.0348636984677
2012	3184.407152188664
2013	3487.3723725003706
2014	2850.0458728738286
2015	2535.116829966233
2016	2732.2630181443815
2017	2786.6106325426754
2018	2793.959017286617
2019	3263.8006469071183
2020	3807.96261452924
2021	3951.6944521359173
2022	4022.033106778142