Year	Percent of GDP
2004-01-01	36.7225
2005-01-01	41.8721
2006-01-01	43.1252
2007-01-01	49.6613
2008-01-01	53.6080
2009-01-01	53.3487
2010-01-01	53.6474
2011-01-01	54.1104
2012-01-01	55.8110
2013-01-01	56.2282
2014-01-01	55.9968
2015-01-01	54.6904
2016-01-01	55.1637
2017-01-01	59.2062