Year Percent of GDP 2000-01-01 42.1252 2001-01-01 59.3758 2002-01-01 54.5983 2003-01-01 41.6097 2004-01-01 35.1211 2005-01-01 28.1930 2006-01-01 20.9710 2007-01-01 15.7836 2008-01-01 12.3333 2009-01-01 10.9073 2010-01-01 10.0445 2011-01-01 9.9884 2012-01-01 10.5504 2013-01-01 11.2166 2014-01-01 10.9428 2015-01-01 9.2046 2016-01-01 10.5211 2017-01-01 24.5389 2018-01-01 20.0932 2019-01-01 20.6486