Year	Percent of GDP
2004-01-01	25.2073
2005-01-01	28.1052
2006-01-01	28.6427
2007-01-01	29.1932
2008-01-01	25.8830
2009-01-01	37.2997
2010-01-01	31.9948
2011-01-01	28.8446
2012-01-01	29.4420
2013-01-01	29.9425
2014-01-01	33.8134
2015-01-01	40.9745
2016-01-01	45.0422
2017-01-01	47.1580