Year Thousands of Persons 1966-01-01 277.200 1967-01-01 280.000 1968-01-01 280.000 1969-01-01 279.000 1970-01-01 279.000 1971-01-01 278.500 1972-01-01 279.000 1973-01-01 288.000 1974-01-01 296.000 1975-01-01 291.500 1976-01-01 296.000 1977-01-01 298.400 1978-01-01 310.000 1979-01-01 322.500 1980-01-01 333.000 1981-01-01 329.100 1982-01-01 345.000 1983-01-01 346.100 1984-01-01 337.600 1985-01-01 347.900 1986-01-01 349.400 1987-01-01 369.400 1988-01-01 366.800 1989-01-01 375.400 1990-01-01 400.300 1991-01-01 401.300 1992-01-01 416.000 1993-01-01 433.600 1994-01-01 454.200 1995-01-01 482.700 1996-01-01 513.000 1997-01-01 539.400 1998-01-01 604.600 1999-01-01 651.125 2000-01-01 689.650 2001-01-01 716.725 2002-01-01 740.875 2003-01-01 759.825 2004-01-01 784.525 2005-01-01 828.200 2006-01-01 864.875 2007-01-01 908.550 2008-01-01 920.550 2009-01-01 882.375 2010-01-01 857.900 2011-01-01 842.400