Year	constant 2011 international $
1990	1457.59461253735
1991	1512.26978015237
1992	1609.49202564048
1993	1705.33554295775
1994	1822.02581015414
1995	1962.30553427076
1996	2112.91486087411
1997	2253.62526288593
1998	2353.55571497582
1999	2437.195886651
2000	2574.13300529398
2001	2705.37591775453
2002	2848.44088740631
2003	3016.57032748224
2004	3214.18513538634
2005	3425.02395990616
2006	3630.03457115151
2007	3852.32363307564
2008	4031.551427591
2009	4207.75617819796
2010	4433.46782576121
2011	4662.22305207602
2012	4856.00060371544
2013	5065.64342704261
2014	5312.49218270374
2015	5608.47185909735
2016	5895.62849208773
2017	6233.48504530588
2018	6608.62168558013