Year	Percent of GDP
1991-01-01	39.133
1992-01-01	41.619
1993-01-01	45.156
1994-01-01	47.518
1995-01-01	54.779
1996-01-01	57.646
1997-01-01	58.689
1998-01-01	59.423
1999-01-01	59.983
2000-01-01	58.861
2001-01-01	57.745
2002-01-01	59.406
2003-01-01	63.073
2004-01-01	64.766
2005-01-01	66.992
2006-01-01	66.493
2007-01-01	63.664
2008-01-01	65.152
2009-01-01	72.581
2010-01-01	80.946
2011-01-01	78.617
2012-01-01	79.844
2013-01-01	77.506
2014-01-01	74.594
2015-01-01	70.904
2016-01-01	67.900
2017-01-01	63.852