Year	constant 2015 US$
1991	1229.794281795373
1992	1269.5107977052699
1993	1302.0824228468812
1994	1365.8833046662292
1995	1467.259770137574
1996	1558.6293073303916
1997	1595.234703824624
1998	1601.5713038055096
1999	1616.5115660349445
2000	1642.5827597345963
2001	1711.796156828605
2002	1757.3630969131855
2003	1833.4808301452288
2004	1987.7895882234968
2005	2118.6778707092462
2006	2298.698806283267
2007	2451.0358929586478
2008	2639.4235742853516
2009	2812.0698252709008
2010	2983.209649603459
2011	3241.785246312073
2012	3420.8686538306883
2013	3777.415650683542
2014	4143.15910206691
2015	4440.208531075919
2016	4667.149709077688
2017	5019.6706614306095
2018	5349.2018525281555
2019	5720.985527597322
2020	6213.154586300959
2021	6569.303946751662
2022	6868.3195151006585