Year	Thousands of Persons
1990-01-01	3.3
1991-01-01	3.2
1992-01-01	4.0
1993-01-01	4.8
1994-01-01	1.9
1995-01-01	1.6
1996-01-01	2.6
1997-01-01	2.1
1998-01-01	1.7
1999-01-01	1.7
2000-01-01	2.2
2001-01-01	3.8
2002-01-01	2.7
2003-01-01	1.7
2004-01-01	1.9
2005-01-01	2.5
2006-01-01	3.4
2007-01-01	3.3
2008-01-01	2.5
2009-01-01	2.1
2010-01-01	2.1
2011-01-01	2.1
2012-01-01	1.7
2013-01-01	1.6
2014-01-01	1.4
2015-01-01	1.5
2016-01-01	1.6
2017-01-01	1.8