Year	% of GDP
2009	19.306966334662174
2010	18.3964978276495
2011	19.96856112302593
2012	23.651468794696466
2013	21.06138825284008
2014	17.44322760902886
2015	19.744921164342024
2016	19.454173585966366
2017	18.440420036498896
2018	18.13153809676282
2019	17.782321112939513
2020	17.727026567746286
2021	18.714566830709618
2022	18.341772152579264
2023	17.951237885780866