Year Percent of GDP 2004-01-01 0.107873300881155 2005-01-01 0.112111095935493 2006-01-01 0.104013429345637 2007-01-01 0.123889074182062 2008-01-01 0.104498936507087 2009-01-01 0.121778267149239 2010-01-01 0.145344250496627 2011-01-01 0.158729275330208 2012-01-01 0.208547860490972 2013-01-01 0.231811001672552 2014-01-01 0.226428048727993 2015-01-01 0.270217560372505