Year Thousands of Persons 1959-01-01 14987.75 1960-01-01 14950.75 1961-01-01 14821.25 1962-01-01 14730.00 1963-01-01 14573.00 1964-01-01 14630.50 1965-01-01 14994.25 1966-01-01 14939.50 1967-01-01 15057.00 1968-01-01 15035.25 1969-01-01 14852.50 1970-01-01 14876.25 1971-01-01 14864.75 1972-01-01 14767.75 1973-01-01 14728.00 1974-01-01 14800.25 1975-01-01 14845.50 1976-01-01 14886.75 1977-01-01 14857.00 1978-01-01 14891.50 1979-01-01 14959.50 1980-01-01 15039.00 1981-01-01 15084.75 1982-01-01 15119.75 1983-01-01 15179.25 1984-01-01 15259.25 1985-01-01 15306.00 1986-01-01 15378.75 1987-01-01 15362.25 1988-01-01 15452.00 1989-01-01 15383.25 1990-01-01 15486.50 1991-01-01 15523.25 1992-01-01 15243.50 1993-01-01 14448.75 1994-01-01 14293.00 1995-01-01 14179.00 1996-01-01 14151.00 1997-01-01 14149.50 1998-01-01 14220.75 1999-01-01 14231.50 2000-01-01 14281.25 2001-01-01 14275.00 2002-01-01 14351.75 2003-01-01 14480.00 2004-01-01 14546.50 2005-01-01 14640.25 2006-01-01 14740.00 2007-01-01 14779.25 2008-01-01 14884.00 2009-01-01 14789.58 2010-01-01 14747.70 2011-01-01 14732.96