Year Percent of GDP 2004-01-01 59.1618 2005-01-01 48.7279 2006-01-01 46.2395 2007-01-01 46.8997 2008-01-01 41.4098 2009-01-01 59.5455 2010-01-01 57.7454 2011-01-01 48.9819 2012-01-01 46.5948 2013-01-01 51.3522 2014-01-01 56.1932 2015-01-01 76.6312 2016-01-01 76.3981 2017-01-01 78.1582