Year	Thousands of Persons
1990-01-01	0.9
1991-01-01	1.0
1992-01-01	1.0
1993-01-01	0.9
1994-01-01	1.0
1995-01-01	0.9
1996-01-01	0.9
1997-01-01	0.9
1998-01-01	0.9
1999-01-01	0.9
2000-01-01	1.0
2001-01-01	1.0
2002-01-01	0.9
2003-01-01	0.9
2004-01-01	0.9
2005-01-01	0.9
2006-01-01	0.8
2007-01-01	0.8
2008-01-01	0.8
2009-01-01	0.8
2010-01-01	0.8
2011-01-01	0.8
2012-01-01	0.8
2013-01-01	0.8
2014-01-01	0.7
2015-01-01	0.7
2016-01-01	0.6
2017-01-01	0.6