Year	constant 2011 international $
1990	3003.85881744117
1991	2804.27316107814
1992	2638.73304952396
1993	2360.57274152019
1994	2343.86101652631
1995	2359.38629061828
1996	2396.92524250481
1997	2456.61624280832
1998	2501.08261023004
1999	2541.31857709007
2000	2563.53987243004
2001	2605.81738626822
2002	2645.04552365009
2003	2692.87754764421
2004	2799.0993966054
2005	2779.31604963596
2006	2798.05947126378
2007	2855.83535682166
2008	2875.27878883481
2009	2858.72276061675
2010	2876.42910520644
2011	2914.2376674035
2012	2964.55353983975
2013	3040.97115233589
2014	3134.08070428593
2015	3223.5827301615
2016	3284.86382356597
2017	3312.89967728942
2018	3352.05501301951