Year	% of GDP
2012	17.912681952639666
2013	18.434762883496763
2014	18.072036347066245
2015	17.223120031805646
2016	16.390473533849974
2017	14.994260124277622
2018	13.942311655414613
2019	11.525610737958814
2020	11.349805155454892
2021	11.3435484176857
2022	10.373136395612246
2023	8.39558968573676