Year Percent of GDP 2004-01-01 34.8025185219824 2005-01-01 34.2030334395910 2006-01-01 39.7358789086324 2007-01-01 40.3308324542960 2008-01-01 43.4906237396707 2009-01-01 42.6285661997851 2010-01-01 41.7369192504162 2011-01-01 41.4417239672867 2012-01-01 41.9830619850608 2013-01-01 43.6554810863444 2014-01-01 44.2924637469444 2015-01-01 42.1806300437713 2016-01-01 36.0469231199896 2017-01-01 34.2149746779999 2018-01-01 34.3275299516902 2019-01-01 34.2972823218602