Year % of GDP 1993 30.994596157386383 1994 30.48328144909188 1995 47.264935419650115 1996 37.50592454305168 1997 35.082931511742125 1998 35.96264346497118 1999 34.81375580730081 2000 33.588387659667376 2001 36.683085665454115 2002 37.00920333172054 2003 38.28508506608223 2004 34.63531357261789 2005 33.47862384994404 2006 32.602826320116705 2007 32.35668667685961 2008 32.080260013950515 2009 35.04036092172611 2010 34.98733993343134 2011 34.93378049948269 2012 36.60888275414095 2013 34.734024796207216 2014 34.47120714737057 2015 33.258298024507404 2016 32.835536817422515 2017 31.80739082360432 2018 32.21079252992324 2019 32.578583295720726 2020 38.428300208910954 2021 38.046286969915286 2022 35.778036059128226