Year Percent of GDP 2004-01-01 52.4210421566150 2005-01-01 61.0806586333166 2006-01-01 67.4962982904833 2007-01-01 63.7166893276544 2008-01-01 63.0098433091530 2009-01-01 55.6427288556191 2010-01-01 61.2017262150235 2011-01-01 64.1227653660853 2012-01-01 64.6941057026500 2013-01-01 60.5517767328953 2014-01-01 61.4027883344981 2015-01-01 57.8877902281815 2016-01-01 52.9127229652801 2017-01-01 54.1625961423396 2018-01-01 55.2639740890056 2019-01-01 56.7915509715083