Year	constant 2011 international $
1990	1545.52188263578
1991	1526.01720149816
1992	1483.5316068992
1993	1451.66058459882
1994	1428.14651974307
1995	1436.49666541396
1996	1462.63829675519
1997	1477.97251246343
1998	1497.76938446594
1999	1534.29209947112
2000	1564.65101146059
2001	1616.95123087126
2002	1685.25428787629
2003	1748.17869527935
2004	1827.06591229606
2005	1909.08983725263
2006	1977.41705251481
2007	2052.58027929036
2008	2108.63703204747
2009	2156.99197445967
2010	2227.96245593513
2011	2329.33043657044
2012	2362.93231835174
2013	2448.89599430505
2014	2536.60008831846
2015	2613.35719131847
2016	2710.40979791594
2017	2809.06900948105