Year Percent of GDP 2004-01-01 60.6379861783898 2005-01-01 43.6657438969455 2006-01-01 32.4658260190696 2007-01-01 38.9189211647708 2008-01-01 30.4466798183640 2009-01-01 51.9365647693479 2010-01-01 49.9465821698140 2011-01-01 52.2001132746207 2012-01-01 46.2074198468896 2013-01-01 31.5494275086423 2014-01-01 30.4224445090836 2015-01-01 34.5050007072548 2016-01-01 31.7843201977312 2017-01-01 26.3983521534627 2018-01-01 27.2030213811640 2019-01-01 29.4667875450698