Year constant 2011 international $ 1990 1762.20343177267 1991 1846.21704166896 1992 1917.37071201263 1993 1953.47218518317 1994 1922.06300605089 1995 1984.11847439257 1996 2046.1241735623 1997 2202.05905597353 1998 2235.16419006814 1999 2242.05355656935 2000 2319.22798019924 2001 2402.2088715434 2002 2486.23943356134 2003 2604.71111048622 2004 2631.2976857792 2005 2750.62744413148 2006 2944.53850253559 2007 3194.47393175832 2008 3351.26307134466 2009 3368.96552075026 2010 3396.64309590861 2011 3643.09216091874 2012 4074.02250123862 2013 4152.24947525657 2014 4161.89506238384 2015 4262.23362226171 2016 4356.78413105344 2017 4435.8570954933