Year	Percent of GDP
2004-01-01	15.4002
2005-01-01	17.0651
2006-01-01	19.3139
2007-01-01	22.7509
2008-01-01	22.5952
2009-01-01	29.7911
2010-01-01	30.7746
2011-01-01	30.7719
2012-01-01	31.6711
2013-01-01	34.6133
2014-01-01	38.8120
2015-01-01	44.8637
2016-01-01	42.7281