Year	Percent of GDP
2004-01-01	57.2846
2005-01-01	63.6895
2006-01-01	66.8387
2007-01-01	68.0899
2008-01-01	66.6559
2009-01-01	68.6780
2010-01-01	69.7935
2011-01-01	71.7980
2012-01-01	80.8729
2013-01-01	80.7771
2014-01-01	80.9959
2015-01-01	86.2529
2016-01-01	86.2594
2017-01-01	95.5969