Year	constant 2010 US$
1991	793.175928209008
1992	783.463319349697
1993	783.066243207051
1994	766.427496625369
1995	786.901818179613
1996	825.8728779093
1997	828.530074900117
1998	836.380195502532
1999	846.06354187357
2000	828.812793553496
2001	841.087607232294
2002	913.764089578955
2003	934.491822805046
2004	956.581063494439
2005	998.54820636642
2006	1044.78160921544
2007	1083.16370329432
2008	1116.84262984633
2009	1153.72429524383
2010	1180.09003373463
2011	1195.12163362656
2012	1248.56490244853
2013	1269.70552415927
2014	1297.27553822447
2015	1318.8106432137
2016	1320.38121289014
2017	1341.80907073856
2018	1449.91865212322