Year	constant 2011 international $
1990	5926.93889049787
1991	5914.20604707574
1992	5978.18206858162
1993	5854.74183579946
1994	5592.8416671073
1995	6092.46835955387
1996	6391.08158019775
1997	6467.93950059306
1998	6255.80516396468
1999	6457.6959540938
2000	6285.83654759968
2001	6598.4153427801
2002	6430.37238388253
2003	6513.01599305432
2004	6863.99312888655
2005	7662.02098990787
2006	7665.17880783192
2007	8014.53209697258
2008	7917.15188017437
2009	7824.64509602015
2010	7819.2628254345
2011	8316.8640776957
2012	8663.12545395657
2013	9287.90584632624
2014	9331.11946334609
2015	9362.20467803929
2016	9457.01260700926
2017	9395.65566112098