Year Percent of GDP 2004-01-01 38.9297152292697 2005-01-01 37.8216115095504 2006-01-01 41.9203568856106 2007-01-01 42.7108573637753 2008-01-01 42.5065397853813 2009-01-01 63.2348912206810 2010-01-01 63.6398539200739 2011-01-01 65.1542113281742 2012-01-01 57.2146680965548 2013-01-01 56.1584638123962 2014-01-01 53.5919641674069 2015-01-01 54.5642998257211 2016-01-01 51.6693434583820 2017-01-01 53.3919245819680 2018-01-01 53.3919245819680 2019-01-01 53.3919245819680