Year	constant 2015 US$
1991	1074.0424116162858
1992	1128.347268293394
1993	1164.3360507117554
1994	1221.125835190194
1995	1301.5187712619481
1996	1382.9773492544628
1997	1423.079376898871
1998	1432.2313988255557
1999	1448.4730446757665
2000	1437.2351622927229
2001	1477.3650407298917
2002	1510.3149471170045
2003	1567.3729348662669
2004	1705.9741687629848
2005	1834.580907446761
2006	1993.0958394390066
2007	2124.7244889002923
2008	2273.265498367535
2009	2418.100371378755
2010	2575.8411332045343
2011	2764.0772715196827
2012	2948.4321378726527
2013	3221.423359789168
2014	3509.9282629533486
2015	3762.0099629546094
2016	3991.510829665444
2017	4253.999170071254
2018	4534.144916381377
2019	4838.842904248511
2020	5206.391144257309
2021	5549.814747323454
2022	5753.167301021404