Year Percent of GDP 2004-01-01 34.8976465081813 2005-01-01 28.8965120074268 2006-01-01 26.5011245422482 2007-01-01 29.5859064898854 2008-01-01 27.5417518128173 2009-01-01 39.3928256509129 2010-01-01 38.0562994925977 2011-01-01 32.0492708169082 2012-01-01 41.1481428957988 2013-01-01 30.3080451576082 2014-01-01 28.7093001746000 2015-01-01 24.7014542202980 2016-01-01 16.5638365073885 2017-01-01 12.0475390150777 2018-01-01 10.7660822656880 2019-01-01 11.3346443652638