Year	Percent of GDP
2004-01-01	16.3485310585518
2005-01-01	16.5690466661567
2006-01-01	16.9287680125204
2007-01-01	18.9565114201242
2008-01-01	19.4756832994544
2009-01-01	20.0436781112122
2010-01-01	21.1692148077234
2011-01-01	21.9088238399181
2012-01-01	20.6890313197525
2013-01-01	21.3179322744987
2014-01-01	21.8469299660654
2015-01-01	22.5317086621433
2016-01-01	22.4628968203301
2017-01-01	22.6386207290769
2018-01-01	22.8454969453622
2019-01-01	22.8454969453622