Year % of GDP 2011 13.926808344670647 2012 11.592439363252309 2013 10.105282402522008 2014 8.720339804491537 2015 6.737625634175324 2016 6.259588741272437 2017 8.402457923279966 2018 7.685645855718411 2019 7.7441828296055615 2020 11.463900323928032 2022 15.393166073036127