Year	Thousands of Persons
1961-01-01	3639
1971-01-01	3245
1977-01-01	3318
1978-01-01	3337
1979-01-01	3375
1980-01-01	3451
1981-01-01	3680
1982-01-01	3717
1983-01-01	3842
1984-01-01	3868
1985-01-01	3892
1986-01-01	3888
1987-01-01	3884
1988-01-01	3961
1989-01-01	3967
1990-01-01	4000
1991-01-01	3934
1992-01-01	4034
1993-01-01	4112.444
1994-01-01	4188.893
1995-01-01	4244.493
1996-01-01	4313.986
1997-01-01	4292.740
1998-01-01	4525.750
1999-01-01	4586.150
2000-01-01	4611.950
2001-01-01	4580.250
2002-01-01	4655.925
2003-01-01	4734.350
2004-01-01	4818.775
2005-01-01	4846.275
2006-01-01	4886.750
2007-01-01	4916.725
2008-01-01	4937.275
2009-01-01	4979.775
2010-01-01	5017.350
2011-01-01	4967.625