Year constant 2011 international $ 1995 4507.0033596558 1996 4642.20047258941 1997 4784.90747891 1998 4836.96577793084 1999 4951.14067548892 2000 5180.25093006313 2001 5316.50079436909 2002 5506.10153714156 2003 5779.28352746134 2004 6142.24604448121 2005 6487.83141904205 2006 6963.93325632538 2007 7504.61062173655 2008 7826.07698042104 2009 7931.37304030086 2010 8405.93233450999 2011 8806.56339234692 2012 9156.77313478319 2013 9503.05221186414 2014 9899.92924311163 2015 10218.2773044499 2016 10594.8508492614 2017 11015.8996646115