Year	Percent of GDP
2004-01-01	32.9241
2005-01-01	31.3677
2006-01-01	29.5676
2007-01-01	28.1035
2008-01-01	30.9268
2009-01-01	33.4030
2010-01-01	31.2144
2011-01-01	32.1085
2012-01-01	30.9559
2013-01-01	31.4340
2014-01-01	34.8463
2015-01-01	36.9836
2016-01-01	37.1138
