Year % of GDP 2004 80.29445003198467 2005 83.58498131228848 2006 80.61716645607738 2007 83.07279727580686 2008 84.30359060908367 2009 81.04608151948266 2010 78.16134235594365 2011 77.86438874449036 2012 77.14220577894379 2013 79.19033410875312 2014 77.34428245065276 2015 77.77711756762207 2016 73.55117446688806 2017 76.1711778629882 2018 75.55247582553622 2019 75.54928001992343 2020 70.64841250404767 2021 66.31764270734489 2022 71.6777285986759