Year	Percent of GDP
2004-01-01	17.9509449267425
2005-01-01	18.6382557093436
2006-01-01	20.9955491750401
2007-01-01	21.6904673102446
2008-01-01	20.7363085106165
2009-01-01	20.9014481765083
2010-01-01	21.5522051012906
2011-01-01	23.1372659577078
2012-01-01	22.7607691640521
2013-01-01	22.0356624181837
2014-01-01	23.1003222661489
2015-01-01	22.9659375847516
2016-01-01	24.0308220776018
2017-01-01	22.3297291356510
2018-01-01	22.9275018516144
2019-01-01	22.4492048792735