Year	Percent of GDP
2004-01-01	16.3695220148511
2005-01-01	16.3275632770753
2006-01-01	17.9640258584421
2007-01-01	18.6417907064687
2008-01-01	18.2221857589021
2009-01-01	17.9500152658438
2010-01-01	17.6571919709676
2011-01-01	13.9770803951262
2012-01-01	18.5720635121640
2013-01-01	18.3742925962611
2014-01-01	17.1206768850524
2015-01-01	18.5483118474645
2016-01-01	18.0131746570129
2017-01-01	18.0551249989116
2018-01-01	18.0855215411652
2019-01-01	18.1390217004117