Year	Thousands of Persons
1955-01-01	24547.50
1956-01-01	25038.33
1957-01-01	25653.33
1958-01-01	25855.83
1959-01-01	26254.17
1960-01-01	26725.83
1961-01-01	27085.00
1962-01-01	27530.00
1963-01-01	27905.83
1964-01-01	28314.17
1965-01-01	28835.00
1966-01-01	29418.33
1967-01-01	29921.67
1968-01-01	30580.83
1969-01-01	30905.00
1970-01-01	31294.17
1971-01-01	31815.83
1972-01-01	32279.17
1973-01-01	32784.17
1974-01-01	33110.83
1975-01-01	33359.17
1976-01-01	33681.67
1977-01-01	33812.50
1978-01-01	34063.33
1979-01-01	34365.00
1980-01-01	34647.50
1981-01-01	34980.83
1982-01-01	35217.50
1983-01-01	35642.50
1984-01-01	35805.00
1985-01-01	35961.67
1986-01-01	36255.83
1987-01-01	36547.50
1988-01-01	36933.33
1989-01-01	37370.83
1990-01-01	37905.00
1991-01-01	38538.33
1992-01-01	38993.33
1993-01-01	39346.67
1994-01-01	39513.33
1995-01-01	39657.50
1996-01-01	39920.83
1997-01-01	40272.50
1998-01-01	40258.33
1999-01-01	40242.50
2000-01-01	40136.67
2001-01-01	39916.67
2002-01-01	39558.33
2003-01-01	39340.00
2004-01-01	39050.00
2005-01-01	39006.67
2006-01-01	38982.50
2007-01-01	39062.50
2008-01-01	38879.17
2009-01-01	38468.33
2010-01-01	38220.00
2011-01-01	37105.83