Year Percent of GDP 2000-01-01 35.8661 2001-01-01 39.3050 2002-01-01 39.2250 2003-01-01 39.7637 2004-01-01 39.8173 2005-01-01 34.9532 2006-01-01 34.3714 2007-01-01 36.2138 2008-01-01 32.2260 2009-01-01 39.8737 2010-01-01 35.2271 2011-01-01 40.9564 2012-01-01 45.9262 2013-01-01 46.0217 2014-01-01 47.9770 2015-01-01 51.5254 2016-01-01 50.1594 2017-01-01 41.1191 2018-01-01 40.0036 2019-01-01 39.8782