Year Percent of GDP 2000-01-01 68.1676 2001-01-01 71.6230 2002-01-01 61.2010 2003-01-01 54.3476 2004-01-01 56.4136 2005-01-01 71.4221 2006-01-01 63.8088 2007-01-01 67.4910 2008-01-01 60.5609 2009-01-01 69.7007 2010-01-01 70.7032 2011-01-01 72.3398 2012-01-01 71.2422 2013-01-01 72.2598 2014-01-01 66.6437 2015-01-01 59.9984 2016-01-01 53.3967 2017-01-01 54.3370 2018-01-01 54.3139 2019-01-01 54.0747