Year	Thousands of Persons
1990-01-01	9.1
1991-01-01	9.4
1992-01-01	9.4
1993-01-01	10.5
1994-01-01	10.7
1995-01-01	11.1
1996-01-01	12.1
1997-01-01	13.4
1998-01-01	14.6
1999-01-01	14.2
2000-01-01	14.5
2001-01-01	14.5
2002-01-01	14.4
2003-01-01	14.5
2004-01-01	15.4
2005-01-01	15.7
2006-01-01	14.7
2007-01-01	14.4
2008-01-01	13.9
2009-01-01	12.6
2010-01-01	12.6
2011-01-01	12.9
2012-01-01	13.7
2013-01-01	14.7
2014-01-01	15.3
2015-01-01	15.4
2016-01-01	14.5
2017-01-01	14.2