Year	constant 2011 international $
1990	1462.67742107927
1991	1473.86252559355
1992	1465.57057864765
1993	1497.74263989156
1994	1476.5393429105
1995	1515.06774041106
1996	1531.64280725026
1997	1571.16906095909
1998	1585.78506587644
1999	1621.90086797704
2000	1666.46746353098
2001	1703.01513026645
2002	1728.69687889668
2003	1734.69529970284
2004	1757.90297863214
2005	1735.97415014991
2006	1752.95752640256
2007	1805.6221411138
2008	1841.18738797947
2009	1831.88141769026
2010	1818.77846075906
2011	1820.8893040888
2012	1855.93633148333
2013	1934.62261495887
2014	2001.05200039071
2015	1987.14191963108
2016	2009.66101931751
2017	2069.28528048612
2018	2151.54316951218