Year constant 2011 international $ 2001 104337.296964795 2002 97501.2345303987 2003 98534.1426475509 2004 99012.6297315665 2005 93174.0986996151 2006 89201.9326960105 2007 80087.3516481074 2008 70366.382103141 2009 59483.6590963901 2010 55342.24596977 2011 56592.0359928207 2012 57900.4085326205 2013 60674.8923654809 2014 63062.1356738548 2015 66093.0498350924 2016 67409.8819449026 2017 67135.9737061255