Year	Percent of GDP
2004-01-01	30.6155
2005-01-01	34.5066
2006-01-01	36.4520
2007-01-01	49.4195
2008-01-01	53.3862
2009-01-01	51.0042
2010-01-01	50.0341
2011-01-01	51.7538
2012-01-01	54.3196
2013-01-01	53.4741
2014-01-01	54.1971
2015-01-01	53.5427
2016-01-01	52.9772
2017-01-01	54.7482