Year	Percent of GDP
2004-01-01	9.2880
2005-01-01	10.1356
2006-01-01	10.9352
2007-01-01	17.5237
2008-01-01	18.8052
2009-01-01	20.5842
2010-01-01	21.1567
2011-01-01	21.6469
2012-01-01	24.1432
2013-01-01	24.4089
2014-01-01	24.7515
2015-01-01	25.6086
2016-01-01	25.5536
2017-01-01	25.9305