Year Percent of GDP 1990-01-01 55.4575577622349 1991-01-01 54.6921187619320 1992-01-01 54.1493623975839 1993-01-01 56.4777211039490 1994-01-01 51.7299008053805 1995-01-01 49.6758333772883 1996-01-01 47.8820489883928 1997-01-01 52.1487241537751 1998-01-01 54.9903125723397 1999-01-01 53.4206029581440 2000-01-01 58.7651607654773 2001-01-01 59.0744239453721 2002-01-01 62.4010765554861 2003-01-01 61.9317347607812 2004-01-01 64.5391724056546 2005-01-01 63.8135449904898 2006-01-01 61.6666602127551 2007-01-01 58.8812080614740 2008-01-01 57.7059224997572 2009-01-01 56.9063867954432 2010-01-01 52.6077186277975 2011-01-01 52.1667170853151 2012-01-01 51.2454227799476 2013-01-01 50.9758514791277