Year Percent of GDP 2000-01-01 88.2443 2001-01-01 92.6231 2002-01-01 94.9901 2003-01-01 98.1027 2004-01-01 88.7481 2005-01-01 83.9649 2006-01-01 68.8314 2007-01-01 67.5981 2008-01-01 55.1140 2009-01-01 60.3408 2010-01-01 61.0905 2011-01-01 65.4542 2012-01-01 76.0332 2013-01-01 80.0650 2014-01-01 80.8091 2015-01-01 85.7741 2016-01-01 87.6807 2017-01-01 88.4886 2018-01-01 86.7926 2019-01-01 84.4414