Year Percent of GDP 1996-01-01 5.59294988311306 1997-01-01 5.97774588970013 1998-01-01 5.92715323675596 1999-01-01 8.00131073066808 2000-01-01 8.36655570890287 2001-01-01 10.36122607238060 2002-01-01 11.90077337149170 2003-01-01 13.05659290838930 2004-01-01 14.22670123676820 2005-01-01 13.30780601013070 2006-01-01 12.43256730355860 2007-01-01 11.47242871772350 2008-01-01 11.42812954660930 2009-01-01 9.16192139645933 2010-01-01 9.04037397221507 2011-01-01 9.74197114732138 2012-01-01 9.82769216494011 2013-01-01 9.76519609379289 2014-01-01 9.13271861462865 2015-01-01 10.55178732059760 2016-01-01 10.35908953660020 2017-01-01 10.62157403049760