Year	Thousands of Persons
1955-01-01	16998.33
1956-01-01	17245.00
1957-01-01	17616.67
1958-01-01	17674.17
1959-01-01	17712.50
1960-01-01	18072.50
1961-01-01	18254.17
1962-01-01	18348.33
1963-01-01	18367.50
1964-01-01	18545.00
1965-01-01	18780.83
1966-01-01	19213.33
1967-01-01	19627.50
1968-01-01	19804.17
1969-01-01	19855.00
1970-01-01	20025.00
1971-01-01	19813.33
1972-01-01	19646.67
1973-01-01	20235.00
1974-01-01	19727.50
1975-01-01	19526.67
1976-01-01	19763.33
1977-01-01	20326.67
1978-01-01	20825.00
1979-01-01	21165.00
1980-01-01	21417.50
1981-01-01	21619.17
1982-01-01	22005.00
1983-01-01	22630.00
1984-01-01	22815.83
1985-01-01	23037.50
1986-01-01	23270.83
1987-01-01	23599.17
1988-01-01	24084.17
1989-01-01	24739.17
1990-01-01	25361.67
1991-01-01	25924.17
1992-01-01	26188.33
1993-01-01	26096.67
1994-01-01	26141.67
1995-01-01	26135.00
1996-01-01	26273.33
1997-01-01	26650.00
1998-01-01	26564.17
1999-01-01	26316.67
2000-01-01	26291.67
2001-01-01	26293.33
2002-01-01	25938.33
2003-01-01	25975.00
2004-01-01	26157.50
2005-01-01	26332.50
2006-01-01	26520.00
2007-01-01	26595.00
2008-01-01	26558.33
2009-01-01	26380.00
2010-01-01	26416.67
2011-01-01	25801.67