Year	% of GDP
2005	64.93124795637885
2006	67.52106973124077
2007	72.22550174044204
2008	72.85600570024505
2009	70.2190718994774
2010	80.03363907681376
2011	73.36318335432497
2012	73.41585312557152
2013	73.15719646374778
2014	71.0492968979182
2015	69.23563985106118
2016	68.35364678563319
2017	73.53432063582656
2018	73.22950900542142