Year Percent of GDP 2004-01-01 25.0200439960837 2005-01-01 25.0966986462672 2006-01-01 25.6160625964202 2007-01-01 25.3138834152703 2008-01-01 29.2680898205920 2009-01-01 28.6716166606845 2010-01-01 28.5943775568193 2011-01-01 34.1828415575543 2012-01-01 33.9761756527440 2013-01-01 32.0280767312169 2014-01-01 33.0349453579773 2015-01-01 36.2852907930965 2016-01-01 36.8705651226527 2017-01-01 32.2864156558048 2018-01-01 35.0079193283970 2019-01-01 35.6766455226075