Year	% of GDP
1995	25.264299284697053
1996	24.977299694832507
1997	24.261516188361774
2010	30.86266201192803
2011	31.531443097722462
2012	31.83879783583873
2013	31.61260504284754
2014	30.94377085978551
2015	30.085104253130325
2016	29.727922307406736
2017	29.485608237615317
2018	30.249791723409896
2019	30.284901534182172
2020	29.073167946412042
2021	29.218678330362646