Year	% of GDP
2005	39.47674882350464
2006	26.501124542248167
2007	29.585907339941002
2008	27.541751812817278
2009	39.39282565091287
2010	38.05629949259771
2011	32.049271265901595
2012	41.14814289579879
2013	30.3080451576082
2014	28.709300174599967
2015	24.701452904397712
2016	16.698645990314347
2017	14.031716654129983
2018	12.501496627553424
2019	10.891703090740963