Year	Percent of GDP
2004-01-01	35.1741
2005-01-01	39.8928
2006-01-01	47.2608
2007-01-01	47.0332
2008-01-01	52.0401
2009-01-01	53.3106
2010-01-01	50.1873
2011-01-01	46.8598
2012-01-01	47.1763
2013-01-01	50.8502
2014-01-01	59.4841
2015-01-01	62.0258
2016-01-01	64.3498
2017-01-01	68.9888