Year Percent of GDP 2004-01-01 61.9081512342690 2005-01-01 67.1726285249266 2006-01-01 73.3550614330760 2007-01-01 79.0508849956056 2008-01-01 80.7998774198913 2009-01-01 77.6903086003501 2010-01-01 75.8044824452904 2011-01-01 74.5884043141108 2012-01-01 72.9424386849801 2013-01-01 70.9680034644293 2014-01-01 70.7924292883517 2015-01-01 73.4534130123727 2016-01-01 72.5590382671228 2017-01-01 72.5590382671229 2018-01-01 72.5590382671227 2019-01-01 72.5590382671227