Year Percent of GDP 1990-01-01 56.429 1991-01-01 59.899 1992-01-01 54.445 1993-01-01 53.634 1994-01-01 56.624 1995-01-01 58.305 1996-01-01 59.511 1997-01-01 55.184 1998-01-01 51.827 1999-01-01 51.049 2000-01-01 50.317 2001-01-01 53.416 2002-01-01 56.183 2003-01-01 58.653 2004-01-01 61.989 2005-01-01 67.392 2006-01-01 69.175 2007-01-01 68.439 2008-01-01 71.666 2009-01-01 83.609 2010-01-01 90.526 2011-01-01 111.390 2012-01-01 126.222 2013-01-01 129.039 2014-01-01 130.593 2015-01-01 128.770 2016-01-01 129.901 2017-01-01 125.682