Year Thousands of Persons 1956-01-01 13504.00 1957-01-01 13513.00 1958-01-01 13389.00 1959-01-01 13240.00 1960-01-01 13179.00 1961-01-01 13088.00 1962-01-01 13027.00 1963-01-01 13107.00 1964-01-01 13245.00 1965-01-01 13272.00 1966-01-01 13368.00 1967-01-01 13383.00 1968-01-01 13314.00 1969-01-01 13462.00 1970-01-01 13587.00 1971-01-01 13580.00 1972-01-01 13582.00 1973-01-01 13710.00 1974-01-01 13789.00 1975-01-01 13595.00 1976-01-01 13611.00 1977-01-01 13628.00 1978-01-01 13590.00 1979-01-01 13540.00 1980-01-01 13526.00 1981-01-01 13374.00 1982-01-01 13286.00 1983-01-01 13156.00 1984-01-01 12926.00 1985-01-01 12793.00 1986-01-01 12785.00 1987-01-01 12775.00 1988-01-01 12861.00 1989-01-01 13016.00 1990-01-01 13249.88 1991-01-01 13170.95 1992-01-01 12986.83 1993-01-01 12680.22 1994-01-01 12620.29 1995-01-01 12687.50 1996-01-01 12726.50 1997-01-01 12671.25 1998-01-01 12744.00 1999-01-01 12839.50 2000-01-01 13152.25 2001-01-01 13307.00 2002-01-01 13362.75 2003-01-01 13298.50 2004-01-01 13306.50 2005-01-01 13337.25 2006-01-01 13375.00 2007-01-01 13523.50 2008-01-01 13675.00 2009-01-01 13474.25 2010-01-01 13499.50 2011-01-01 13537.00