Year Thousands of Persons 1956-01-01 1975 1957-01-01 2007 1958-01-01 2039 1959-01-01 2071 1960-01-01 2118 1961-01-01 2137 1962-01-01 2150 1963-01-01 2147 1964-01-01 2171 1965-01-01 2174 1966-01-01 2181 1967-01-01 2166 1968-01-01 2147 1969-01-01 2147 1970-01-01 2156 1971-01-01 2162 1972-01-01 2163 1973-01-01 2205 1974-01-01 2259 1975-01-01 2262 1976-01-01 2360 1977-01-01 2361 1978-01-01 2362 1979-01-01 2389 1980-01-01 2432 1981-01-01 2464 1982-01-01 2502 1983-01-01 2518 1984-01-01 2536 1985-01-01 2556 1986-01-01 2559 1987-01-01 2544 1988-01-01 2536 1989-01-01 2575 1990-01-01 2575 1991-01-01 2534 1992-01-01 2488 1993-01-01 2465 1994-01-01 2453 1995-01-01 2472 1996-01-01 2481 1997-01-01 2476 1998-01-01 2498.667 1999-01-01 2547.833 2000-01-01 2579 2001-01-01 2596.583 2002-01-01 2600.375 2003-01-01 2590.308 2004-01-01 2584.192 2005-01-01 2611.500 2006-01-01 2638.317 2007-01-01 2665.775 2008-01-01 2694.267 2009-01-01 2669.605 2010-01-01 2661.730 2011-01-01 2672.644