Year % of GDP 2001 46.146643172359326 2002 46.11716857963781 2003 47.98989657381189 2004 48.84049087625054 2005 56.54015016721418 2006 51.367405222848404 2007 52.478279175863754 2008 52.01765042895131 2009 55.4440354912795 2010 53.046053607561184 2011 50.569958718148186 2012 49.869785155719946 2013 52.710082724811016 2014 54.69979036402995 2015 55.84753384648336 2016 56.801732356623816 2017 57.509051808365285 2018 58.62516835676006 2019 60.498614046539686 2020 66.80253648120335 2021 62.662991944569356 2022 63.78475196518044 2023 62.80734317569399