Year % of GDP 2001 115.594326215358 2002 93.5097439456465 2003 93.0319053268718 2004 96.4005474606063 2005 128.500378275278 2006 152.095134810252 2007 184.438091194324 2008 189.854954214005 2009 191.959669971079 2010 221.117068296302 2011 209.843027555468 2012 204.669490306457 2013 188.231888645828 2014 193.489123605159 2015 193.338898920992 2016 195.570503049095 2017 193.899110291966 2018 189.737520053136