Year Percent of GDP 1995-01-01 46.4084520114491 1996-01-01 43.7464242084290 1997-01-01 47.4255298846964 1998-01-01 49.7166480932255 1999-01-01 49.8072999957723 2000-01-01 53.1591272401538 2001-01-01 58.2123552469639 2002-01-01 53.3981095738508 2003-01-01 54.6503884029020 2004-01-01 57.3448028044509 2005-01-01 59.8962704753520 2006-01-01 64.3213655489823 2007-01-01 55.0944527648225 2008-01-01 57.2999198817856 2009-01-01 49.1671697824237 2010-01-01 46.3464594308788 2011-01-01 48.0307148126771 2012-01-01 47.9941906980546 2013-01-01 43.1406142423782 2014-01-01 40.3431064457589 2015-01-01 40.6401945475253 2016-01-01 36.9634563451132 2017-01-01 36.5211361533374