Year % of GDP 2010 30.234434001560217 2011 30.772648424272486 2012 35.18463435144987 2013 37.29885381966845 2014 32.85558114499532 2015 30.48189740323132 2016 26.99522207890061 2017 23.96953149546453 2018 24.36249966472882 2019 25.832805420840817 2020 29.26104626837661 2021 29.06335487864152 2022 28.00316975854362 2023 26.236920599132986