Year	% of GDP
2011	21.070172939703905
2012	21.26649792516716
2013	21.68594405908132
2014	21.486204352708757
2015	21.713487443801302
2016	21.73607887823709
2017	22.54031859471702
2018	23.22141399426596
2019	22.166425078308638
2020	19.580566084464085
2021	18.019305469288827