Year	constant 2011 international $
1990	3055.82439858817
1991	3119.76482766673
1992	3267.76832269925
1993	3235.02304519229
1994	3264.58640742674
1995	3332.08094790904
1996	3395.56991437883
1997	3332.9655580955
1998	3322.00266676239
1999	3349.65841934193
2000	3401.1133261497
2001	3382.17412026939
2002	3407.85819055089
2003	3490.30889892319
2004	3662.06701535637
2005	3853.33608262839
2006	3998.62037163523
2007	4097.30469789065
2008	4073.77376712487
2009	4096.60887275591
2010	4071.97605979452
2011	4094.52711205909
2012	4148.9425472701
2013	4241.18504011363
2014	4347.52750642688
2015	4459.146517241
2016	4608.52721363451
2017	4771.2052358543
2018	4927.9214480849