Year Percent of GDP 2004-01-01 77.1135 2005-01-01 60.3721 2006-01-01 59.4776 2007-01-01 63.9051 2008-01-01 64.8727 2009-01-01 68.5079 2010-01-01 91.1950 2011-01-01 68.8172 2012-01-01 70.5386 2013-01-01 62.5336 2014-01-01 50.0649 2015-01-01 47.2804 2016-01-01 45.5525 2017-01-01 46.3139