Year Percent of GDP 2004-01-01 65.6310892909999 2005-01-01 64.5889502884490 2006-01-01 70.7930423320985 2007-01-01 26.3209177794153 2008-01-01 21.3230841301747 2009-01-01 24.7880259081918 2010-01-01 23.1596353632866 2011-01-01 27.6287647550038 2012-01-01 26.4071554673985 2013-01-01 32.4533285317226 2014-01-01 35.6449978903035 2015-01-01 36.4068455538926 2016-01-01 40.9491531692530 2017-01-01 46.3481744492471 2018-01-01 45.1361922395202 2019-01-01 43.1347843651102