Year % of GDP 1995 71.01484542034055 1996 73.44453482208928 1997 71.35028598794128 1998 76.11593659362093 1999 78.53529110233528 2000 76.41843898148596 2001 76.36873677986287 2002 73.69806539759884 2003 70.7938942854318 2004 75.1666470428246 2005 74.86627524050098 2006 75.89916730344397 2007 75.30146972720974 2008 75.24801485825053 2009 75.1557196592353 2010 75.4811024108211 2011 75.53451342710973 2012 75.53789405667563 2013 72.94117378718947 2014 73.50041226535396 2015 71.94874907196267 2016 70.75005147197936 2017 70.86886252368986 2018 69.43112506017722 2019 68.2250525756765 2020 66.61214149924972 2021 65.98108867434624 2022 68.27283538565244 2023 67.27201864801499