Year	Percent of GDP
2004-01-01	10.3762
2005-01-01	10.6052
2006-01-01	12.0451
2007-01-01	13.5836
2008-01-01	12.3399
2009-01-01	13.6848
2010-01-01	17.4365
2011-01-01	18.5178
2012-01-01	20.4721
2013-01-01	19.8903
2014-01-01	19.4175
2015-01-01	20.8235
2016-01-01	22.1158