Year	Thousands of Persons
1990-01-01	21.1
1991-01-01	20.6
1992-01-01	22.1
1993-01-01	23.5
1994-01-01	24.5
1995-01-01	25.1
1996-01-01	24.5
1997-01-01	23.6
1998-01-01	23.4
1999-01-01	23.8
2000-01-01	24.6
2001-01-01	25.2
2002-01-01	27.1
2003-01-01	28.1
2004-01-01	28.4
2005-01-01	28.3
2006-01-01	27.4
2007-01-01	25.2
2008-01-01	22.8
2009-01-01	20.2
2010-01-01	18.3
2011-01-01	17.0
2012-01-01	16.1