Year % of GDP 2009 11.534174464344854 2010 9.912261582427806 2011 9.79398200038448 2012 10.43300401595717 2013 10.721923448486844 2014 11.363796887442831 2015 10.492495494465329 2016 11.39033993680771 2017 11.836719019283795 2018 11.69508305828797 2020 11.626768854352173 2021 10.855799643965401 2022 11.79268079346687 2023 11.472999380652297