Year	% of GDP
2006	94.76691215549312
2007	101.55927257385449
2008	107.40273702419347
2009	104.44225672093903
2010	99.61674904187261
2011	98.69083436208668
2012	103.87367683033708
2013	96.37951538575888
2014	97.50633379828632
2015	99.83630024863184
2016	97.31331387949763
2017	103.71895837919598
2018	115.12203914866343