Year	constant 2011 international $
1990	1298.55874169747
1991	1358.1020914332
1992	1420.18331928932
1993	1437.7992935407
1994	1491.77837145776
1995	1510.62089650628
1996	1565.73558897335
1997	1595.87649552721
1998	1596.50744255935
1999	1586.46366033555
2000	1637.34981948623
2001	1693.21984399415
2002	1710.44244008853
2003	1798.60797903514
2004	1840.36096310073
2005	1913.52343008782
2006	2000.65633800703
2007	2100.5320063025
2008	2241.86450640416
2009	2286.70660191284
2010	2418.9320256919
2011	2575.28083807812
2012	2714.5710988369
2013	2746.18303202382
2014	2811.23673468621
2015	2867.14816468684
2016	2935.51199544893
2017	2845.88952154939
2018	2864.91493422653