Year	Percent of GDP
1999-01-01	54.5764548447180
2000-01-01	58.0959520676529
2001-01-01	53.8316501943876
2002-01-01	49.1295342262716
2003-01-01	47.6740000697207
2004-01-01	51.3067034879545
2005-01-01	55.5856170538019
2006-01-01	60.7478379016165
2007-01-01	65.7226476095131
2008-01-01	66.6405695435647
2009-01-01	52.5277513345299
2010-01-01	62.2880318643800
2011-01-01	69.0268450152877
2012-01-01	69.6179222650834
2013-01-01	69.5864896324290
2014-01-01	67.9860525536702
2015-01-01	69.0242233994589
2016-01-01	68.5604657410625
2017-01-01	74.2567678034902