Year	Percent of GDP
2004-01-01	25.1232
2005-01-01	28.1325
2006-01-01	30.2900
2007-01-01	36.7031
2008-01-01	36.4742
2009-01-01	37.7370
2010-01-01	35.8227
2011-01-01	39.6267
2012-01-01	45.0777
2013-01-01	51.6266
2014-01-01	41.7129
2015-01-01	38.4512
2016-01-01	38.5198
2017-01-01	44.5409