Year	constant 2015 US$
1991	1111.2714237580717
1992	1155.3542391046697
1993	1014.6501480910238
1994	951.495341557665
1995	988.4905901948873
1996	968.7663373291714
1997	962.0604718747077
1998	971.8054059996495
1999	879.163597066507
2000	881.25065994921
2001	925.6121414208357
2002	997.3289489705861
2003	1042.818672294661
2004	1065.4493406378615
2005	1096.7115578111043
2006	1092.1757610301372
2007	1047.6263956530415
2008	1104.3229461337012
2009	1108.0445253737491
2010	1121.4077468512316
2011	1167.4957914946315
2012	1367.4668789699047
2013	1413.8399560896412
2014	1428.5999699197523
2015	1414.169743384311
2016	1400.282709402589
2017	1498.0980476645088
2018	1439.5593325506356
2019	1422.0330143104222
2020	1475.8463841604153
2021	1460.5026684275651
2022	1440.0291588694988