Year	Percent of GDP
2004-01-01	39.5908
2005-01-01	41.6706
2006-01-01	40.3711
2007-01-01	39.1768
2008-01-01	43.1946
2009-01-01	45.6781
2010-01-01	43.2636
2011-01-01	41.7788
2012-01-01	43.1505
2013-01-01	44.9607
2014-01-01	46.7894
2015-01-01	45.8296
2016-01-01	47.7721
2017-01-01	52.5476