Year Percent of GDP 2004-01-01 25.8823 2005-01-01 26.6705 2006-01-01 26.5078 2007-01-01 31.4569 2008-01-01 37.1373 2009-01-01 40.2868 2010-01-01 39.1614 2011-01-01 38.6277 2012-01-01 45.7700 2013-01-01 44.6727 2014-01-01 45.9223 2015-01-01 52.0240 2016-01-01 61.9250