Year Percent of GDP 1998-01-01 60.0875306484875 1999-01-01 49.2258790871465 2000-01-01 38.9025679957616 2001-01-01 35.0550646253957 2002-01-01 33.7590239576753 2003-01-01 32.4293070579206 2004-01-01 30.9139342493217 2005-01-01 30.7882359535945 2006-01-01 27.0422969481724 2007-01-01 26.9733928311180 2008-01-01 46.8107119995045 2009-01-01 66.6984524703272 2010-01-01 82.6759237572967 2011-01-01 111.7441254247720 2012-01-01 129.7542343228250 2013-01-01 131.1138409085210 2014-01-01 121.4683097049430 2015-01-01 88.7907502374756 2016-01-01 83.6340767820251