Year % of GDP 1995 58.50576798633275 1996 57.80811475664465 1997 58.448526232921104 1998 58.550169213092865 1999 58.98506149140277 2000 60.052512005172 2001 60.61266841823594 2002 61.27067838020389 2003 62.16767209662238 2004 62.61325275903742 2005 63.0261405065662 2006 62.94691193250513 2007 63.5609450035676 2008 64.8391188297629 2009 66.86489191431929 2010 66.06455896502737 2011 66.34604394663414 2012 66.43639025338808 2013 66.90122060607922 2014 66.32175675467101 2015 65.52902506154265 2016 65.4706663840203 2017 65.36235193142072 2018 65.15521883164801 2019 65.62641557102236 2020 65.5834940692536 2021 65.19214440365012 2022 66.09285369641209 2023 67.0000962286849