Year	Thousands of Persons
1990-01-01	7.6
1991-01-01	7.7
1992-01-01	8.8
1993-01-01	11.5
1994-01-01	12.3
1995-01-01	12.9
1996-01-01	13.4
1997-01-01	13.3
1998-01-01	13.9
1999-01-01	14.9
2000-01-01	15.3
2001-01-01	14.7
2002-01-01	14.3
2003-01-01	14.0
2004-01-01	14.6
2005-01-01	14.8
2006-01-01	15.0
2007-01-01	14.3
2008-01-01	14.2
2009-01-01	13.1
2010-01-01	12.8
2011-01-01	12.7
2012-01-01	13.0
2013-01-01	12.8
2014-01-01	12.7
2015-01-01	12.9
2016-01-01	13.6
2017-01-01	13.4