Year % of GDP 2003 2.9413293539527525 2004 1.9125051963432265 2005 0.7951890792590642 2006 4.208788723964905 2007 4.49334163791474 2008 6.31347362127293 2009 5.4580521882423305 2010 6.312442694159383 2011 3.7988281639702115 2012 11.57192820723225 2013 7.595462888447008 2014 7.279004558874082 2015 4.773359519214186 2016 6.34008371364289 2017 4.659370021544812 2018 3.7826394393379625 2019 4.737656726773647 2020 11.455271880346704 2021 9.173733036384245 2022 10.605967369038908