Year	Percent of GDP
2004-01-01	5.6031
2005-01-01	8.2037
2006-01-01	10.2274
2007-01-01	12.1559
2008-01-01	14.5529
2009-01-01	17.6595
2010-01-01	19.0460
2011-01-01	20.4523
2012-01-01	21.8090
2013-01-01	23.6839
2014-01-01	26.2394
2015-01-01	28.7288
2016-01-01	32.1085
2017-01-01	36.1766