Year	Thousands of Persons
1990-01-01	7.8
1991-01-01	7.4
1992-01-01	7.4
1993-01-01	7.8
1994-01-01	8.5
1995-01-01	9.1
1996-01-01	9.6
1997-01-01	9.6
1998-01-01	10.3
1999-01-01	11.1
2000-01-01	11.0
2001-01-01	10.8
2002-01-01	10.8
2003-01-01	11.0
2004-01-01	10.9
2005-01-01	10.8
2006-01-01	10.6
2007-01-01	10.3
2008-01-01	9.9
2009-01-01	9.4
2010-01-01	9.0
2011-01-01	8.8
2012-01-01	8.6
2013-01-01	8.7
2014-01-01	8.7
2015-01-01	8.5
2016-01-01	8.4
2017-01-01	8.4