Year	Percent of GDP
2004-01-01	8.8861
2005-01-01	10.0401
2006-01-01	11.3486
2007-01-01	12.4293
2008-01-01	13.8227
2009-01-01	13.4515
2010-01-01	13.9130
2011-01-01	14.5747
2012-01-01	14.5243
2013-01-01	14.9041
2014-01-01	14.4046
2015-01-01	14.3281
2016-01-01	14.9057
2017-01-01	15.3896