Year % of GDP 1995 16.415383117907478 1996 17.752066143917816 1997 16.809556338274035 1998 16.535479464758264 1999 18.417971799316145 2000 17.070033777016434 2001 14.652743377362789 2002 9.767147702890362 2003 8.085460539324732 2004 8.530454663126118 2005 6.739387840896072 2006 6.817562637474895 2007 6.119036075158446 2008 7.444738419815924 2009 7.2014889247217235 2010 6.602459074012393 2011 7.445150919923796 2012 6.434658118975042 2013 7.414216373181774 2014 7.065883260344159 2015 6.713852384104603 2016 6.8111512676836865 2017 6.014153757323734 2018 6.342783370926976 2019 5.954416344837786 2020 6.34335002788481 2021 6.293190056689525 2022 6.459893678300355 2023 5.234587951237465