Year	Thousands of Persons
1990-01-01	0.8
1991-01-01	0.8
1992-01-01	0.7
1993-01-01	0.6
1994-01-01	0.5
1995-01-01	0.5
1996-01-01	0.5
1997-01-01	0.5
1998-01-01	0.5
1999-01-01	0.5
2000-01-01	0.5
2001-01-01	0.7
2002-01-01	0.7
2003-01-01	0.5
2004-01-01	0.5
2005-01-01	0.4
2006-01-01	0.4
2007-01-01	0.4
2008-01-01	0.3
2009-01-01	0.3
2010-01-01	0.3
2011-01-01	0.4
2012-01-01	0.4
2013-01-01	0.3
2014-01-01	0.3
2015-01-01	0.2
2016-01-01	0.2
2017-01-01	0.1