Year % of GDP 2001 8.555089123592266 2002 8.874651107736913 2003 8.715789667093668 2004 8.656751736265113 2005 8.9489913342907 2006 8.778411936655155 2007 8.810754480222524 2008 9.512890630592054 2009 9.64307267713728 2010 9.743829346463063 2011 10.462657431170543 2012 11.145230274383477 2013 11.160412371374235 2014 10.866885608596846 2015 9.844484138861645 2016 8.52279611186147 2017 8.071262697116802 2018 8.704805357253075 2019 8.85578039462247 2020 8.640898095405053 2021 9.538813352340336