Year	Thousands of Persons
1970-01-01	8819
1971-01-01	9036
1972-01-01	9238
1973-01-01	9425
1974-01-01	9614
1975-01-01	9763
1976-01-01	9957
1977-01-01	10136
1978-01-01	10406
1979-01-01	10575
1980-01-01	10778
1981-01-01	10994
1982-01-01	11204
1983-01-01	11401
1984-01-01	11602
1985-01-01	11826
1986-01-01	12074
1987-01-01	12323
1988-01-01	12593
1989-01-01	12823
1990-01-01	13051
1991-01-01	13227
1992-01-01	13391
1993-01-01	13561
1994-01-01	13729
1995-01-01	13936
1996-01-01	14117
1997-01-01	14321
1998-01-01	14525
1999-01-01	14698
2000-01-01	14902
2001-01-01	15140
2002-01-01	15390
2003-01-01	15611
2004-01-01	15802
2005-01-01	16099
2006-01-01	16371
2007-01-01	16701
2008-01-01	17020
2009-01-01	17400
2010-01-01	17773
2011-01-01	18052
2012-01-01	18332