Year	constant 2015 US$
1991	1215.739373200667
1992	1252.6968384483018
1993	1275.4025840514164
1994	1311.8963405404058
1995	1344.5865739641417
1996	1418.46531254445
1997	1419.5664985904937
1998	1444.8371570576821
1999	1460.486885179992
2000	1460.8066116517637
2001	1503.7832394936179
2002	1537.2786489375635
2003	1604.2548288773187
2004	1684.4416441202875
2005	1789.564009897451
2006	1885.335688552092
2007	1961.3843798263272
2008	2021.8239332705477
2009	2083.245903064328
2010	2199.0313685619676
2011	2330.6113325544306
2012	2438.7895373926494
2013	2588.6191150733334
2014	2714.4219564609425
2015	2829.2946568795314
2016	2932.6766097203154
2017	3087.186849319088
2018	3210.2176998703444
2019	3332.295399332903
2020	3401.3497460728677
2021	3491.640893139251
2022	3541.2215660624997