Year Percent of GDP 2004-01-01 49.8874 2005-01-01 47.2040 2006-01-01 46.0937 2007-01-01 47.8169 2008-01-01 49.0959 2009-01-01 52.0037 2010-01-01 53.2907 2011-01-01 55.5427 2012-01-01 59.6314 2013-01-01 69.6808 2014-01-01 76.7122 2015-01-01 74.2925 2016-01-01 88.1988