Year	Percent of GDP
2005-01-01	12.6301
2006-01-01	16.7438
2007-01-01	20.3855
2008-01-01	21.1942
2009-01-01	20.8039
2010-01-01	20.0022
2011-01-01	20.5955
2012-01-01	22.6821
2013-01-01	23.7131
2014-01-01	24.2852
2015-01-01	23.6851
2016-01-01	23.5467