Year % of GDP 2007 36.91022607904042 2008 37.32185296390811 2009 33.33793353239181 2010 34.61186307484322 2011 34.07204451580561 2012 29.06873328247676 2013 29.205896652188567 2014 26.60912700968499 2015 28.521085843690397 2016 28.053343467750896 2017 25.59090522906541 2018 25.55283655143525 2019 24.761604677077987 2020 17.54811386303821 2021 17.57376682168057 2022 21.95563765914532 2023 20.82892167169512