Year Percent of GDP 2004-01-01 77.9956140579011 2005-01-01 78.7761699548381 2006-01-01 85.9941474520189 2007-01-01 38.1977451668278 2008-01-01 38.2736130861210 2009-01-01 37.8818493888959 2010-01-01 40.6532186062144 2011-01-01 49.6649914925244 2012-01-01 49.2136655842256 2013-01-01 58.6091914532895 2014-01-01 69.4146505569289 2015-01-01 68.5741190843424 2016-01-01 82.3490292755588 2017-01-01 88.0353593810485 2018-01-01 82.7546215167701 2019-01-01 77.0590315747851