Year	Percent of GDP
2007-01-01	0.1584
2008-01-01	0.2131
2009-01-01	0.3064
2010-01-01	0.3305
2011-01-01	0.4105
2012-01-01	0.3425
2013-01-01	0.3489
2014-01-01	0.3788
2015-01-01	0.3213
2016-01-01	0.3397