Year Percent of GDP 2009-01-01 14.6345 2010-01-01 21.5857 2011-01-01 21.5521 2012-01-01 21.8623 2013-01-01 19.8733 2014-01-01 20.3024 2015-01-01 21.9289 2016-01-01 32.7869