Year Percent of GDP 1994-01-01 5.60973400621436 1995-01-01 6.15702784949591 1996-01-01 7.22622523884196 1997-01-01 7.66357181261904 1998-01-01 6.92230544639377 1999-01-01 6.77901618264572 2000-01-01 7.77641166903374 2001-01-01 8.09357299057830 2002-01-01 8.17844929135019 2003-01-01 8.60281888532526 2004-01-01 9.41266817825570 2005-01-01 10.90711190058310 2006-01-01 12.78459567352430 2007-01-01 13.80010286501010 2008-01-01 15.17749213170880 2009-01-01 10.50828183970930 2010-01-01 12.14363167434370 2011-01-01 13.88997798169260 2012-01-01 14.23195122478420 2013-01-01 16.12885402432780 2014-01-01 16.69300132570470 2015-01-01 14.74006832776510 2016-01-01 12.25573973510050 2017-01-01 13.80612940910060