Year Percent of GDP 2004-01-01 35.8771455080330 2005-01-01 41.8321651826591 2006-01-01 42.1140216648290 2007-01-01 46.6215635654649 2008-01-01 50.9418228282793 2009-01-01 45.8285878020476 2010-01-01 39.2120937352577 2011-01-01 38.1604350429483 2012-01-01 39.0646353503080 2013-01-01 38.7440421730926 2014-01-01 37.1536508054770 2015-01-01 35.5384982374567 2016-01-01 35.7599258652268 2017-01-01 39.0349937119998 2018-01-01 40.5711251413319 2019-01-01 40.0633461772650