Year	Percent of GDP
2004-01-01	0.0452
2005-01-01	0.0968
2006-01-01	0.3985
2007-01-01	21.6649
2008-01-01	18.9093
2009-01-01	19.7635
2010-01-01	20.7719
2011-01-01	20.6058
2012-01-01	22.0070
2013-01-01	22.9022
2014-01-01	24.2038
2015-01-01	24.6912
2016-01-01	22.8316