Year	% of GDP
2006	20.57817376876219
2007	24.243258822612535
2008	50.71929787365118
2009	44.317839239677156
2010	50.86300459990573
2011	59.484775880751414
2012	42.329251448460774
2013	42.09368444688047
2014	44.58929948933394
2015	37.022569573642684
2016	43.9227656125389
2017	39.220109980768356