Year	% of GDP
2006	6.967597575070165
2007	5.283456603982825
2008	6.087964930207692
2009	8.481758361036036
2010	9.169751919154082
2011	8.916793995957361
2012	7.707800602877726
2013	7.122773290208889
2014	6.88210294277301
2015	7.585382331297979
2016	9.502652782880944
2017	9.898450896884214