Year	Thousands of Persons
1971-01-01	13401
1972-01-01	13681
1973-01-01	13975
1974-01-01	14137
1975-01-01	14480
1976-01-01	14615
1977-01-01	14656
1978-01-01	14810
1979-01-01	15088
1980-01-01	15316
1981-01-01	15346
1982-01-01	15331
1983-01-01	15477
1984-01-01	15504
1985-01-01	15876
1986-01-01	16144
1987-01-01	16707
1988-01-01	17224
1989-01-01	17753
1990-01-01	17994
1991-01-01	17391
1992-01-01	17598
1993-01-01	17623
1994-01-01	18152
1995-01-01	18449
1996-01-01	18612
1997-01-01	19575
1998-01-01	19889
1999-01-01	20395
2000-01-01	20843
2001-01-01	21176
2002-01-01	21519
2003-01-01	21950
2004-01-01	22329
2005-01-01	22596
2006-01-01	22833
2007-01-01	22973
2008-01-01	23326
2009-01-01	23295
2010-01-01	23404
2011-01-01	23584
2012-01-01	23921