Year Percent of GDP 1993-01-01 10.3262327069821 1994-01-01 11.5701652194116 1995-01-01 22.1112368313702 1996-01-01 23.3007550907782 1997-01-01 22.0716019375995 1998-01-01 22.3164836944669 1999-01-01 22.6021212146018 2000-01-01 23.4728067851437 2001-01-01 21.0168219193491 2002-01-01 20.8063214644871 2003-01-01 22.6154818667660 2004-01-01 23.9797361091541 2005-01-01 24.3770220983079 2006-01-01 25.6547046201862 2007-01-01 25.7945619721318 2008-01-01 25.9837124326591 2009-01-01 25.3891529263252 2010-01-01 28.1142060318073 2011-01-01 29.6392613972586 2012-01-01 30.8272962608154 2013-01-01 29.7241823796143 2014-01-01 30.1497102641934 2015-01-01 32.5263856405057 2016-01-01 34.6410077643590 2017-01-01 35.4631351436347