Year	Percent of GDP
2004-01-01	14.2108391236184
2005-01-01	15.6011881533458
2006-01-01	15.5592679769118
2007-01-01	15.8428666215593
2008-01-01	18.6831639190802
2009-01-01	19.2176966775281
2010-01-01	21.1698606692294
2011-01-01	23.7571882738667
2012-01-01	24.2083299643601
2013-01-01	26.2514301151695
2014-01-01	27.3169446024272
2015-01-01	27.3046862692017
2016-01-01	27.8766494705785
2017-01-01	29.4880551782757