Year % of GDP 2010 23.356513396141697 2011 23.71761030094768 2012 24.217342020494094 2013 23.82913148014768 2014 23.119263380041076 2015 24.091214926083108 2016 24.287317692207118 2017 23.2414970694081 2018 23.344507106577584 2019 23.797199551726013 2020 21.944646747976737 2021 22.91957899374912 2022 24.594007741568014