Year	Percent of GDP
2004-01-01	29.6281
2005-01-01	30.0350
2006-01-01	30.4501
2007-01-01	30.6252
2008-01-01	28.7521
2009-01-01	33.3243
2010-01-01	35.5727
2011-01-01	35.2570
2012-01-01	35.4068
2013-01-01	37.0670
2014-01-01	40.8648
2015-01-01	45.5800
2016-01-01	47.2546