Year % of GDP 2001 104.844555002248 2002 105.019480751807 2003 110.782612340083 2004 128.319178568918 2005 152.711439242528 2006 172.593955777918 2007 234.094930134081 2008 230.630655096184 2009 233.597717547637 2010 235.922362711471 2011 228.956207377699 2012 205.261484017556 2013 192.62027147183 2014 160.681082635007 2015 106.803389859201 2016 100.244910644647 2017 83.921279319896 2018 72.2245117620305