Year	Thousands of Persons
1972-01-01	28.25
1973-01-01	26.25
1974-01-01	24.50
1975-01-01	40.00
1976-01-01	32.50
1977-01-01	27.00
1978-01-01	34.50
1979-01-01	37.50
1980-01-01	32.25
1981-01-01	39.50
1982-01-01	52.25
1983-01-01	69.00
1984-01-01	64.25
1985-01-01	53.50
1986-01-01	42.00
1987-01-01	45.25
1988-01-01	69.50
1989-01-01	105.50
1990-01-01	112
1991-01-01	116.25
1992-01-01	126
1993-01-01	127.25
1994-01-01	116.50
1995-01-01	107.25
1996-01-01	108
1997-01-01	92.25
1998-01-01	74.00
1999-01-01	73.75
2000-01-01	80.75
2001-01-01	83.75
2002-01-01	92.50
2003-01-01	106.50
2004-01-01	106.50
2005-01-01	110.25
2006-01-01	84.00
2007-01-01	63.00
2008-01-01	67.25
2009-01-01	81.75
2010-01-01	93.50
2011-01-01	86.00