Year % of GDP 1995 65.77366543591191 1996 63.09296992891144 1997 65.09266362103926 1998 61.79187835517642 1999 60.676720629804095 2000 62.230845794650556 2001 63.8265546097614 2002 65.04713739065431 2003 63.1503799980557 2004 62.46786113260862 2005 62.67709349093988 2006 60.27882903065633 2007 59.44733251663686 2008 59.99217912234327 2009 59.00839960893411 2010 59.11864877705719 2011 60.03426712946064 2012 61.01084915061713 2013 60.94227587416269 2014 59.35365628146633 2015 57.841187412812815 2016 56.944121088861024 2017 56.63507323032925 2018 56.52187114154845 2019 56.380995625773444 2020 58.29248530684632 2021 57.128596220924024 2022 58.35560338883734 2023 58.017050635924846