Year Percent of GDP 2004-01-01 5.8637 2005-01-01 6.6878 2006-01-01 6.0900 2007-01-01 6.9466 2008-01-01 6.6587 2009-01-01 6.8921 2010-01-01 7.2281 2011-01-01 7.1582 2012-01-01 7.3042 2013-01-01 7.4444 2014-01-01 8.4992 2015-01-01 9.3741 2016-01-01 10.0336