Year	constant 2011 international $
1990	1268.52219562799
1991	1267.50672520067
1992	1280.55158909764
1993	1289.2996204081
1994	1283.01436006226
1995	1314.50189421134
1996	1357.8315988316
1997	1389.01016083236
1998	1417.51878259705
1999	1439.07384073855
2000	1458.33359246141
2001	1494.31580927031
2002	1543.297693847
2003	1582.23027250126
2004	1626.91646442332
2005	1698.83924559761
2006	1789.23679371887
2007	1898.13921535062
2008	1972.60361444255
2009	2029.25497424326
2010	2073.74637589671
2011	2188.33263827797
2012	2248.6299269011
2013	2264.07429321637
2014	2394.85993985136
2015	2468.52932964001
2016	2522.45144455128
2017	2598.64985485301
2018	2689.87092411473