Year	Percent of GDP
2004-01-01	18.9553
2005-01-01	17.9533
2006-01-01	17.1156
2007-01-01	18.1539
2008-01-01	19.6200
2009-01-01	20.4067
2010-01-01	20.6807
2011-01-01	20.3758
2012-01-01	20.6008
2013-01-01	21.2495
2014-01-01	22.1150
2015-01-01	23.5219
2016-01-01	24.7189
