Year % of GDP 1995 51.27540061544139 1996 51.85647959886106 1997 51.258599429214144 1998 52.72189205512073 1999 55.235811426386526 2000 56.9388472596318 2001 57.04625106528074 2002 57.88832706104421 2003 57.32051827519958 2004 56.7019905795215 2005 56.5336583933125 2006 56.35455040227135 2007 56.68997914220702 2008 57.246401239777 2009 62.57705176578144 2010 60.72630167983094 2011 58.48361192812837 2012 58.476568941013554 2013 59.72910147424591 2014 59.49970737790126 2015 59.90501770779596 2016 60.93660604915492 2017 60.438126830266135 2018 61.42316419564741 2019 61.432069095956706 2020 61.21988992398558 2021 61.182939435275344 2022 61.20804216266325 2023 63.116205959480084