Year	constant 2011 international $
1990	1967.80697905283
1991	1962.69520033551
1992	2031.345975252
1993	2074.31404116757
1994	2153.30706009543
1995	2255.30256878488
1996	2361.14619183079
1997	2400.76918202205
1998	2484.94676661774
1999	2626.07503355767
2000	2681.93272594122
2001	2745.75192782099
2002	2796.53735035672
2003	2945.97539377701
2004	3114.92887060196
2005	3300.36078604289
2006	3497.37976481492
2007	3693.1873894567
2008	3753.47096704354
2009	3959.18375109479
2010	4198.29104219202
2011	4351.07742347792
2012	4527.66443359421
2013	4739.92392194935
2014	5005.26101991462
2015	5310.50668144295
2016	5647.79793504414
2017	5965.68065759746
2018	6292.94151136076