Year	constant 2015 US$
1986	617.3144534323158
1987	638.6843667204242
1988	659.3605529020557
1989	668.0568193333747
1990	687.5858699540776
1991	690.302601980028
1992	703.6352807296682
1993	724.5571252527988
1994	747.7522393163795
1995	766.0285630081661
1996	815.3017831707976
1997	831.7876069630076
1998	865.278617984962
1999	875.5882299220502
2000	878.9348166336382
2001	887.0947699335877
2002	903.4800481843546
2003	943.0991629414085
2004	988.2902912589124
2005	1037.900153260025
2006	1098.8779809792018
2007	1149.674295801095
2008	1168.1011977348799
2009	1240.625002184494
2010	1318.769973832646
2011	1353.654620673064
2012	1409.6747076923464
2013	1471.7224845740163
2014	1538.7384856617646
2015	1627.981343990258
2016	1722.5357050778268
2017	1800.1968301732313
2018	1875.6341888884942
2019	1924.811727255078
2020	1821.5444961537205
2021	1915.124732829383