Year	Thousands of Persons
1970-01-01	36980
1971-01-01	37410
1972-01-01	37803
1973-01-01	38192
1974-01-01	38560
1975-01-01	38872
1976-01-01	39182
1977-01-01	39527
1978-01-01	39858
1979-01-01	40233
1980-01-01	40601
1981-01-01	40961
1982-01-01	41295
1983-01-01	41630
1984-01-01	41966
1985-01-01	42303
1986-01-01	42660
1987-01-01	43035
1988-01-01	43404
1989-01-01	43762
1990-01-01	44152
1991-01-01	44396
1992-01-01	44651
1993-01-01	44919
1994-01-01	45164
1995-01-01	45419
1996-01-01	45676
1997-01-01	45954
1998-01-01	46217
1999-01-01	46521
2000-01-01	46871
2001-01-01	47278
2002-01-01	47681
2003-01-01	48067
2004-01-01	48469
2005-01-01	48885
2006-01-01	49250
2007-01-01	49559
2008-01-01	49826
2009-01-01	50057
2010-01-01	50294
2011-01-01	50557
2012-01-01	50782