Year	constant 2015 US$
1995	2111.675844095067
1996	2214.1755819879345
1997	2314.29743727981
1998	2382.9684247307555
1999	2444.5139766046045
2000	2545.0862114530587
2001	2618.95091903149
2002	2710.9611779034994
2003	2848.6665419973456
2004	3025.0799360803376
2005	3211.254837193552
2006	3470.3843305787314
2007	3774.2625975317164
2008	3984.8404274719624
2009	4102.503518367765
2010	4383.378569842704
2011	4701.488032201934
2012	4910.344261542963
2013	5097.598900292152
2014	5308.256161772783
2015	5468.166999785144
2016	5655.673669547238
2017	5904.352705539505
2018	6127.740536975928
2019	6330.933709344647
2020	6190.562938126127
2021	6617.009065286893
2022	6831.085009803254