Year Percent of GDP 2004-01-01 22.7230301849786 2005-01-01 32.2797236604805 2006-01-01 29.8117190341201 2007-01-01 36.8470283508002 2008-01-01 34.8213292601564 2009-01-01 29.1603938632728 2010-01-01 35.2202010274223 2011-01-01 31.2214799923573 2012-01-01 24.6003488157350 2013-01-01 26.7594262584177 2014-01-01 27.9221896054257 2015-01-01 35.5961561866608 2016-01-01 35.0162493619746 2017-01-01 32.4362881113683 2018-01-01 27.1599600216437 2019-01-01 28.4213698301342