Year % of GDP 2000 1.4461721375906147 2001 1.339810361014292 2002 1.0817328996730096 2003 1.280013159127827 2004 1.2833845553160346 2005 1.148284494590646 2006 0.9725145676323935 2007 0.8985252163021693 2008 0.5688296381199318 2009 0.7008346988050499 2010 0.6113096359603359 2011 0.6430388139457534 2012 0.45299459129408753 2013 0.5538039716906333 2014 0.5928162935308595 2015 0.49507998344072096 2016 0.44089216738405274