Year	Thousands of Persons
1990-01-01	24.4
1991-01-01	24.0
1992-01-01	25.4
1993-01-01	28.2
1994-01-01	31.4
1995-01-01	34.2
1996-01-01	37.4
1997-01-01	39.7
1998-01-01	41.7
1999-01-01	46.4
2000-01-01	48.0
2001-01-01	48.5
2002-01-01	49.0
2003-01-01	51.3
2004-01-01	51.9
2005-01-01	54.8
2006-01-01	56.2
2007-01-01	54.9
2008-01-01	54.7
2009-01-01	54.6
2010-01-01	55.3
2011-01-01	55.9
2012-01-01	57.9
2013-01-01	60.7
2014-01-01	61.1
2015-01-01	62.2
2016-01-01	61.7
2017-01-01	61.2