Year Percent of GDP 2000-01-01 22.4739 2001-01-01 22.9773 2002-01-01 21.0273 2003-01-01 21.1553 2004-01-01 21.3835 2005-01-01 22.3248 2006-01-01 20.2423 2007-01-01 24.1698 2008-01-01 27.2160 2009-01-01 23.5312 2010-01-01 22.5299 2011-01-01 21.2850 2012-01-01 21.9573 2013-01-01 19.8634 2014-01-01 21.3143 2015-01-01 22.9118 2016-01-01 22.0904 2017-01-01 24.9626 2018-01-01 21.7638 2019-01-01 21.8880