Year Percent of GDP 2004-01-01 106.2690 2005-01-01 104.5616 2006-01-01 102.4780 2007-01-01 100.6737 2008-01-01 101.8786 2009-01-01 108.1237 2010-01-01 107.0173 2011-01-01 110.9426 2012-01-01 112.4656 2013-01-01 113.2017 2014-01-01 113.0609 2015-01-01 112.6384 2016-01-01 114.2169 2017-01-01 117.3384