Year	Thousands of Persons
1960-01-01	31.000
1965-01-01	20.000
1967-01-01	19.000
1969-01-01	15.000
1970-01-01	11.000
1971-01-01	19.000
1972-01-01	15.000
1973-01-01	10.000
1974-01-01	51.000
1975-01-01	69.000
1976-01-01	87.000
1977-01-01	89.000
1978-01-01	102.000
1979-01-01	62.000
1980-01-01	100.000
1981-01-01	149.000
1982-01-01	160.000
1983-01-01	159.000
1984-01-01	112.000
1985-01-01	89.000
1986-01-01	62.000
1987-01-01	73.000
1988-01-01	90.000
1989-01-01	117.000
1990-01-01	121.000
1991-01-01	129.000
1992-01-01	128.000
1993-01-01	159.000
1994-01-01	107.000
1995-01-01	93.000
1996-01-01	88.000
1997-01-01	75.000
1998-01-01	68.000
1999-01-01	72.500
2000-01-01	61.825
2001-01-01	63.975
2002-01-01	64.625
2003-01-01	74.050
2004-01-01	78.400
2005-01-01	68.225
2006-01-01	51.575
2007-01-01	53.275
2008-01-01	49.600
2009-01-01	103.200
2010-01-01	129.025
2011-01-01	118.000