Year	Percent of GDP
2004-01-01	23.3242
2005-01-01	20.8869
2006-01-01	22.0646
2007-01-01	21.7643
2008-01-01	29.1131
2009-01-01	20.3653
2010-01-01	21.2672
2011-01-01	22.1197
2012-01-01	23.5329
2013-01-01	26.8086
2014-01-01	26.1470
2015-01-01	29.2955
2016-01-01	27.6148
2017-01-01	27.6066