Year	% of GDP
1995	24.907805857742957
2011	31.47075399513191
2012	31.762151645192667
2013	31.606840049594535
2014	30.662432791895966
2015	29.413396329258855
2016	28.560581650096765
2017	28.712953161675795
2018	28.486889181431984
2019	30.146955244534507