Year % of GDP 2001 227.45133629227587 2002 226.36614222846418 2003 225.0452030904142 2004 216.81155056593218 2005 216.87064191171115 2006 212.85624648009173 2007 205.99052406191421 2008 203.9953484477206 2009 214.00501557365521 2010 206.01692558274416 2011 206.1320067247108 2012 206.09930931573564 2013 208.26222732978889 2014 208.12376761479615 2015 205.0955305099712 2016 205.44605582361527 2017 209.67602830006166 2018 208.77575610805096 2019 216.78418844015926 2020 237.35552738917266 2021 237.2662971699223 2022 236.5714143804087 2023 232.28774080208314