Year Percent of GDP 1998-01-01 61.8667094502700 1999-01-01 58.8692754156313 2000-01-01 58.0355658071114 2001-01-01 57.5782275225960 2002-01-01 60.9298112790958 2003-01-01 63.4102176693102 2004-01-01 64.3876990343473 2005-01-01 65.3863084078922 2006-01-01 60.8059173340916 2007-01-01 59.3556461270411 2008-01-01 64.9012701355312 2009-01-01 73.8428286085166 2010-01-01 76.4846400841439 2011-01-01 79.7061988535821 2012-01-01 88.9999611869882 2013-01-01 89.7922993718018 2014-01-01 97.6656365288095 2015-01-01 98.0424228310173