Year	Percent of GDP
1991-01-01	75.332
1992-01-01	77.405
1993-01-01	76.978
1994-01-01	73.464
1995-01-01	69.654
1996-01-01	65.977
1997-01-01	67.818
1998-01-01	68.090
1999-01-01	70.038
2000-01-01	73.649
2001-01-01	78.730
2002-01-01	82.851
2003-01-01	84.243
2004-01-01	83.289
2005-01-01	80.894
2006-01-01	77.108
2007-01-01	74.027
2008-01-01	74.536
2009-01-01	72.527
2010-01-01	67.458
2011-01-01	69.641
2012-01-01	69.123
2013-01-01	68.548
2014-01-01	67.811
2015-01-01	69.962
2016-01-01	69.516
2017-01-01	71.176
2018-01-01	69.554