Year % of GDP 2002 114.5638629283489 2003 120.90395480225989 2004 123.14049586776858 2005 122.24316682375118 2006 105.95959595959596 2007 81.87633262260128 2008 50.159744408945684 2009 43.144654088050316 2010 44.30538172715895 2011 48.28532235939643 2012 44.638069705093834 2013 43.9119170984456 2014 53.36538461538461 2015 52.087912087912095 2016 48.292682926829265 2017 40.38461538461539 2018 45.8109146810146 2019 50.55038103302286 2020 50.349650349650354