Year	Percent of GDP
2004-01-01	43.5606
2005-01-01	42.8240
2006-01-01	44.5272
2007-01-01	46.3705
2008-01-01	52.2376
2009-01-01	57.0293
2010-01-01	52.8919
2011-01-01	50.3007
2012-01-01	59.3100
2013-01-01	60.2256
2014-01-01	61.3102
2015-01-01	68.9892
2016-01-01	78.4720