Year % GDP 2004 0.1861698621483892 2005 52.288550185355184 2006 60.010312566997605 2007 71.06131770989434 2008 76.40323455615767 2009 83.0735364602996 2010 85.05647728906153 2011 81.84657642878763 2012 79.27221024353332 2013 65.34611399967186 2014 54.501065145585834 2015 49.87897733901796 2016 46.64102264664059 2017 45.062605467827915 2018 43.30880726125771 2019 42.341114019142815 2020 43.28696729479113 2021 40.90748970270223 2022 41.07107889670802 2023 36.89515881688097