Year % of GDP 2007 19.097996141888267 2008 16.18029765926038 2009 15.106587193726472 2010 14.595191393331872 2011 14.232345661726972 2012 11.956561251424658 2013 14.548060928539968 2014 16.180884067902703 2015 14.885330531320221 2016 13.409601952298761 2017 13.009949041494783 2018 13.252535600860568 2019 12.633545678650753 2020 12.953586101655123 2021 12.60000475569765 2022 12.619044348373853 2023 12.691690289968921