Year Percent of GDP 2000-01-01 13.8116 2001-01-01 12.7845 2002-01-01 10.1732 2003-01-01 9.5525 2004-01-01 9.2153 2005-01-01 9.5163 2006-01-01 11.2936 2007-01-01 18.2418 2008-01-01 16.0038 2009-01-01 20.8442 2010-01-01 17.8688 2011-01-01 13.4909 2012-01-01 12.6387 2013-01-01 12.2889 2014-01-01 13.1126 2015-01-01 13.8238 2016-01-01 19.8061 2017-01-01 22.1493 2018-01-01 23.5912 2019-01-01 26.5355