Year	Thousands of Persons
1990-01-01	1.2
1991-01-01	1.4
1992-01-01	1.5
1993-01-01	1.6
1994-01-01	1.6
1995-01-01	1.5
1996-01-01	1.3
1997-01-01	1.4
1998-01-01	1.3
1999-01-01	1.4
2000-01-01	1.3
2001-01-01	1.3
2002-01-01	1.4
2003-01-01	1.5
2004-01-01	1.5
2005-01-01	1.7
2006-01-01	1.7
2007-01-01	1.6
2008-01-01	1.7
2009-01-01	1.6
2010-01-01	1.5
2011-01-01	1.6
2012-01-01	1.5
2013-01-01	1.5
2014-01-01	1.4
2015-01-01	1.5
2016-01-01	1.4
2017-01-01	1.4