Year % of GDP 2010 15.760810544508283 2011 15.947739263904351 2012 13.578188211468575 2013 15.287971749035497 2014 15.378721057524947 2015 20.916646005554078 2016 20.994467503569155 2017 20.74681261511481 2018 20.449092555515175 2019 19.783939456175165 2020 10.233728855910416 2021 11.250289829729047 2022 13.208449554464122 2023 14.127626305008139