Year % of GDP 1995 78.18234509940301 1996 79.74262382003117 1997 80.2124833997344 1998 79.70311462799557 1999 80.51102248973359 2000 81.90780552130109 2001 83.26551920035622 2002 85.15194271460477 2003 83.94066236047368 2004 82.74476980273093 2005 81.4193411607927 2006 80.65045804731675 2007 78.60325993593307 2008 80.62689653080226 2009 80.42324301670888 2010 81.39326867303231 2011 79.6832086691842 2012 79.74247537884307 2013 79.51673674304931 2014 78.61653157327738 2015 76.93462947136763 2016 76.78092817578197 2017 77.14865992130296 2018 76.5043691388597 2019 75.80153218800852 2020 75.58305870113514 2021 74.93305595480868 2022 76.12711469176186 2023 75.85070629127218