Year	constant 2011 international $
1990	2800.93092186158
1991	2777.87039908607
1992	2757.64173985273
1993	2845.39856308254
1994	2688.62184174252
1995	2878.47444336016
1996	2969.88482293813
1997	2778.72530121077
1998	2784.23176922068
1999	2922.44397170685
2000	2833.9343786193
2001	2813.64754273968
2002	2755.18092874697
2003	2839.10766304111
2004	2918.42347892193
2005	3090.86043504676
2006	3570.52061497378
2007	3567.26221204935
2008	3503.26514034953
2009	3367.48688350052
2010	3426.47250650269
2011	3483.52210100308
2012	3578.10491730641
2013	3685.70479709662
2014	3779.08916197116
2015	3722.70361512154
2016	3690.2407781026
2017	3696.35310415411
2018	3724.41385798754