Year % of GDP 2000 14.434509737985127 2001 14.3164390022981 2002 13.694186007606085 2003 13.508971158664753 2004 12.754643499504981 2005 11.917584607952449 2006 11.40905864511647 2007 11.058829593159047 2008 11.879119227524114 2009 11.18498317713214 2010 11.894034509765504 2011 12.375742378173017 2012 12.189980689899459 2013 11.830230503227563 2014 11.813050720352974 2015 11.866380467410426 2016 11.408467428279598 2017 11.43581194934034 2018 11.287769612962432 2019 11.05672388448904 2020 11.423654463939242 2021 12.082715901892142 2022 12.84514777957745 2023 11.630648937730257