Year % of GDP 2008 44.94990269980085 2009 46.59659696423357 2010 50.36336688996148 2011 52.815525566526084 2012 54.14302931818398 2013 60.95879131508485 2014 63.36727572342759 2015 61.129849506873555 2016 61.97878155615749 2017 59.927853043403736 2018 55.66380521788174 2019 52.79929603599918 2020 59.12296943866879 2021 55.64018908587755 2022 45.655109371843224 2023 46.197662255980916