Year	Thousands of Persons
1970-01-01	7919
1971-01-01	8104
1972-01-01	8344
1973-01-01	8761
1974-01-01	9125
1975-01-01	9284
1976-01-01	9652
1977-01-01	9825
1978-01-01	10124
1979-01-01	10561
1980-01-01	10872
1981-01-01	11192
1982-01-01	10847
1983-01-01	10936
1984-01-01	11211
1985-01-01	11557
1986-01-01	11895
1987-01-01	12221
1988-01-01	12591
1989-01-01	12876
1990-01-01	12964
1991-01-01	12754
1992-01-01	12643
1993-01-01	12705
1994-01-01	12975
1995-01-01	13210
1996-01-01	13337
1997-01-01	13639
1998-01-01	13974
1999-01-01	14326
2000-01-01	14677
2001-01-01	14860
2002-01-01	15210
2003-01-01	15576
2004-01-01	15835
2005-01-01	16032
2006-01-01	16317
2007-01-01	16704
2008-01-01	16985
2009-01-01	16732
2010-01-01	16969
2011-01-01	17238
2012-01-01	17445