Year	constant 2011 international $
1990	758.446023106739
1991	774.68006828936
1992	764.985820665237
1993	814.111672686458
1994	838.874598257346
1995	911.656248147705
1996	968.148220874217
1997	993.607461818511
1998	1014.22465077174
1999	1063.15204554836
2000	1047.960404804
2001	1054.55088655416
2002	1122.36642853127
2003	1158.7561307283
2004	1191.06038582949
2005	1224.07761579309
2006	1320.0363266782
2007	1394.44491234611
2008	1470.6818739667
2009	1523.24934943281
2010	1558.57363584425
2011	1653.99676457691
2012	1656.01187787597
2013	1658.42156684983
2014	1684.3055907031
2015	1717.22362867967
2016	1732.78564402849
2017	1726.70860806202
2018	1752.21098874596