Year	Percent of GDP
2004-01-01	4.55887011287978
2005-01-01	4.29490084489249
2006-01-01	6.50174783747514
2007-01-01	9.83792102007157
2008-01-01	12.05788898933220
2009-01-01	23.05224472111000
2010-01-01	19.89537025744130
2011-01-01	18.79419624104730
2012-01-01	20.05230580172890
2013-01-01	21.36958256409170
2014-01-01	19.91113685838800
2015-01-01	24.04553838648870
2016-01-01	19.91350783989940
2017-01-01	15.50328444303370