Year Percent of GDP 2004-01-01 6.95360658395845 2005-01-01 8.20355822168370 2006-01-01 7.28096801282541 2007-01-01 7.25789962221355 2008-01-01 9.48185349155660 2009-01-01 6.66271552168163 2010-01-01 8.86444357103245 2011-01-01 10.07935437685800 2012-01-01 9.35959843247242 2013-01-01 8.76449651014705 2014-01-01 7.16672857912229 2015-01-01 5.59994248005244 2016-01-01 5.52424240045930 2017-01-01 5.13263968194361 2018-01-01 5.06103523962852 2019-01-01 5.15792460971673