Year % of GDP 2010 28.996437067446813 2011 29.100803057223523 2012 29.66605026647725 2013 28.651122234488437 2014 27.371514544270738 2015 29.25143160026999 2016 29.670105264029896 2017 27.82472985094706 2018 28.58288523428783 2019 29.151876102508805 2020 25.699031101529425 2021 27.326887827644303 2022 29.616036132600914