Year	Thousands of Persons
1970-01-01	140
1971-01-01	160
1972-01-01	190
1973-01-01	190
1974-01-01	420
1975-01-01	890
1976-01-01	890
1977-01-01	900
1978-01-01	870
1979-01-01	780
1980-01-01	770
1981-01-01	1090
1982-01-01	1560
1983-01-01	1900
1984-01-01	1970
1985-01-01	2010
1986-01-01	1860
1987-01-01	1800
1988-01-01	1810
1989-01-01	1640
1990-01-01	1460
1991-01-01	2204
1992-01-01	2615
1993-01-01	3113
1994-01-01	3318
1995-01-01	3200
1996-01-01	3505
1997-01-01	3907
1998-01-01	3693
1999-01-01	3333
2000-01-01	3065
2001-01-01	3110
2002-01-01	3396
2003-01-01	3661
2004-01-01	4107
2005-01-01	4573
2006-01-01	4257
2007-01-01	3601
2008-01-01	3136
2009-01-01	3228
2010-01-01	2946
2011-01-01	2502
2012-01-01	2317