Year	% of GDP
2012	29.792168629739415
2013	29.85773670552255
2014	25.665284877573075
2015	20.07516813734571
2016	17.39206057216899
2017	17.654527116117077
2018	16.782006263138875
2019	19.40734189345184
2020	17.451607661191666
2021	14.537009660660202