Year Thousands of Persons 1955-01-01 44475.33 1956-01-01 45091.00 1957-01-01 45194.42 1958-01-01 45520.67 1959-01-01 45885.33 1960-01-01 46387.83 1961-01-01 46653.08 1962-01-01 46600.25 1963-01-01 47128.83 1964-01-01 47678.08 1965-01-01 48254.25 1966-01-01 48471.75 1967-01-01 48986.25 1968-01-01 49532.83 1969-01-01 50220.75 1970-01-01 51227.92 1971-01-01 52180.08 1972-01-01 53555.33 1973-01-01 54625.17 1974-01-01 55739.58 1975-01-01 56299.75 1976-01-01 57174.75 1977-01-01 58395.92 1978-01-01 59620.83 1979-01-01 60727.67 1980-01-01 61453.25 1981-01-01 61974.08 1982-01-01 62449.58 1983-01-01 63046.75 1984-01-01 63834.67 1985-01-01 64411.17 1986-01-01 65421.58 1987-01-01 66207.17 1988-01-01 66927.33 1989-01-01 67823.17 1990-01-01 69010.58 1991-01-01 69168.34 1992-01-01 69963.75 1993-01-01 70404.34 1994-01-01 70816.50 1995-01-01 71360.34 1996-01-01 72086.50 1997-01-01 73261.25 1998-01-01 73958.92 1999-01-01 74512.17 2000-01-01 76279.58 2001-01-01 76885.58 2002-01-01 77499.58 2003-01-01 78237.92 2004-01-01 78979.75 2005-01-01 80032.50 2006-01-01 81255.00 2007-01-01 82136.34 2008-01-01 82519.58 2009-01-01 82123.00 2010-01-01 81984.75 2011-01-01 81974.58