Year	% of GDP
2011	77.75125328240631
2012	78.05859352864509
2013	78.83670125614418
2014	86.78629098457665
2015	87.0257800881695
2016	87.45053948525987
2017	88.06822021693304
2018	88.2526279866873
2019	87.07542063706845
2020	88.36579310297464
2021	89.34340634250114