Year Percent of GDP 2004-01-01 5.17779926163740 2005-01-01 2.88142427406998 2006-01-01 4.08426983391474 2007-01-01 6.22017956588150 2008-01-01 3.85875826766579 2009-01-01 5.51063106999504 2010-01-01 14.97698508254660 2011-01-01 8.85169327804780 2012-01-01 11.28620415668330 2013-01-01 13.36571912936020 2014-01-01 12.20207948201420 2015-01-01 17.99607619825350 2016-01-01 13.64124251869880 2017-01-01 17.30833005392660 2018-01-01 12.46216055579560 2019-01-01 11.71385043217800