Year Percent of GDP 2000-01-01 36.9346 2001-01-01 33.4707 2002-01-01 27.0083 2003-01-01 21.8702 2004-01-01 19.3519 2005-01-01 48.3946 2006-01-01 53.2018 2007-01-01 56.7427 2008-01-01 41.3725 2009-01-01 50.8113 2010-01-01 42.4225 2011-01-01 38.1484 2012-01-01 32.6974 2013-01-01 30.6281 2014-01-01 34.5570 2015-01-01 52.3468 2016-01-01 69.8075 2017-01-01 82.4571 2018-01-01 81.2874 2019-01-01 81.9337