1901,19.6,23.7,30.7,37.1,39.6,40.3,35.2,33.2,33.2,33.5,28.7,23.2
1902,23.4,26.3,32.5,36.9,39.8,38.5,33.6,33.2,33.1,31.1,27.6,23.2
1903,21.8,23.7,29.4,36.7,40.3,39.1,35.8,33.2,33.7,31.9,28,23.5
1904,22.2,26.2,30.9,38.4,38.6,38,33.5,32.5,32.8,32.2,26.7,22.7
1905,19.3,22.4,27.2,33.9,39.3,39.3,34.1,33.1,33.3,32.5,28.2,22.7
1906,20.7,22.4,29.2,37.7,41.1,38,34.2,32.7,33.4,32.3,29.2,24.1
1907,24.1,22.5,27.1,34.8,38.2,38.8,35.3,33.1,34.2,33.7,28.8,22.8
1908,22,25.5,31.4,39.6,40.2,39.6,33.8,32.6,33.6,32.7,27.4,22.6
1909,22,24,32.9,35.5,40,36.5,33.9,33.3,34,33.4,30.1,23.8
1910,22.8,24.6,31.5,37,39.1,36.9,33.1,32.6,32.9,31.4,27.1,22.7
1911,22.6,25.4,28.3,36.6,40.8,37.1,35.4,33,32.3,31.8,26.9,22.6
1912,21.9,25.8,30.4,35.7,38.7,38.2,33.7,32.4,32.2,32.1,26.3,22.7
1913,22.3,23.6,28.3,37.4,37.6,35.7,33.7,33.3,33.6,32.1,26.6,21.7
1914,23.7,24.1,29.3,35.6,38.4,37.5,33.5,32.7,32.7,30.5,27.9,23.1
1915,22.9,23.9,29.8,36.6,40.2,37.6,34.4,32.9,33,34.5,29.1,23.5
1916,22.4,24.5,34,37.9,40.4,36.2,33.2,32.7,32.6,32.2,28.3,22.2
1917,22,24.4,29.3,33.5,35.5,36.4,33.5,32.7,31.8,31.4,28.1,22.8
1918,21.3,25.8,31.2,35.2,39.8,36.1,35.1,32.8,33.4,32.4,27.4,21.6
1919,21,23.6,30.6,34.8,38,37.7,33.3,32.7,32.6,31.8,27.7,22.5
1920,23.5,23.6,29.2,36.7,36.7,37.3,33.3,32.7,33,32.5,28.6,24.8
1921,21.9,23.8,33.8,38.6,42.2,37.2,33.7,31.8,31.6,29.8,27.4,23.6
1922,21,26.2,32.8,37.4,41.3,37.4,33.7,32.2,32.4,31.2,27.9,21.7
1923,22.8,23.5,31.7,38.5,40,40.3,33.7,33,32.9,31.3,28.2,23.3
1924,21.3,25,32.9,38.3,37.9,41.2,33.8,32.6,32.2,32.6,27.8,23.7
1925,20.4,24.6,31.2,38,39.3,36.4,33.2,33.1,32.8,32,27,23.4
1926,21.8,26,28.7,33.6,37.9,40.4,34.5,33,33.1,31.9,26.1,23.3
1927,21.3,23.1,29.9,36.7,38.4,38.6,34,32.5,33.5,32.2,27.5,24.3
1928,21.5,25.1,31.3,36.2,40.7,37.7,34,33.9,34.4,33.4,28.1,23.3
1929,21.7,24.3,32.4,37.3,41.1,38,33.9,32.3,33.3,31.6,28.4,22.5
1930,20.8,24.4,32.3,36.8,39.7,37.7,33.5,33,33.6,32,27.6,23.7
1931,23.6,23.1,30.8,38.9,39.9,39.9,34.1,33.8,32.7,32,27.9,23.9
1932,24,23.7,31.7,36.9,39.4,39.6,34.5,32.8,33.2,32.5,29.2,23.2
1933,20.9,25.2,31.7,34.7,36.7,37.3,33.6,33,32.9,32.1,28.6,24
1934,21.2,26.4,30.4,37.8,39.9,37.4,33.6,32.3,33.6,32.1,28.3,22.3
1935,19.9,24.9,31.3,33.9,41,39.6,33.6,32.2,32.8,31.8,28,22
1936,20.9,23.5,31.1,36,39.7,35.4,32.9,32.2,32.4,31.2,28.2,21.4
1937,21.1,23.9,30,34.6,38.8,38,33.9,32.5,33.1,31.2,26.8,22.5
1938,21.1,22.9,32.4,38,39.7,36.1,33.1,32.7,33.4,32.5,26.5,24.2
1939,22.5,23.9,28.5,36.2,41,36.9,33.6,32.8,32.9,32,28.4,24.1
1940,22.1,23.9,28.1,35.9,39.8,38.6,34,33,32.5,32.7,29,22.1
1941,21,25.6,33.4,39.6,40.1,37.3,34.9,33.4,33.5,33.1,28.3,24.9
1942,21.4,25.9,32.9,37.4,40.3,39.5,33.7,32.6,32.7,32.7,29.5,22.8
1943,22,25.7,32.1,35,40.7,38.4,34.1,32.4,33.8,32.7,30.2,24.2
1944,20.8,23.6,30,35.3,41.7,37.8,33.9,33.3,33.4,32.6,29,25.4
1945,20,24,31.6,35.2,39.9,39.3,34.2,33.4,33.2,31.3,28.6,22.4
1946,24.4,27.2,31.1,36.5,38.1,37.7,33.6,33.7,33.9,31.9,28.7,24.2
1947,21.1,25.7,31.7,38.6,40.3,39.7,34,33.4,33.4,31.8,29.1,24.1
1948,22.8,24.5,30.2,38.7,41,39.9,33.8,32.6,33,31.9,27.8,22.8
1949,24.2,24.7,31.7,37.4,38.7,39.3,33.8,32.9,33.3,33.3,27.8,21.8
1950,22.9,24.2,29.7,36.9,40.1,37.7,33.5,32.6,32.8,32.4,28.6,23.3
1951,20.8,25.5,31,35.2,39.8,38.5,34.9,33.5,33.1,34.3,29.3,24
1952,23.7,26.8,29.7,37.6,40,37.4,33.9,32.6,33.8,33.2,28.7,24.1
1953,20.5,27.5,34.4,38,40.4,38.9,33.5,32.9,33.5,32.4,28.6,24.9
1954,20.7,25.7,32.3,38.6,41.7,38.4,34,33,33.4,31.1,28.1,22.3
1955,21.1,26.3,33.1,35.4,39,38.4,33.4,32,32.4,30.5,29.1,22.4
1956,21.4,27.3,31.5,38.7,40.8,36.3,33.3,32.8,33.3,31.1,28.6,21.6
1957,20.2,24.6,29.1,36.2,40.1,38.4,34,33.3,33.3,32.5,29.9,23.7
1958,22.9,25.3,32,38.5,40.6,40.2,33.6,32.6,32.9,32.3,29.9,23.8
1959,22.5,24.9,33.3,37.7,40.3,38.8,33.2,33,32.9,31.5,28.6,25
1960,21.7,30.1,30.2,36.7,41.2,39.5,33.8,32.9,33.5,31.9,29,25.2
1961,22.1,22.5,32.1,37.7,39.9,38.1,34.3,32.9,32.9,30.9,25.6,21.2
1962,21.4,24.6,31.3,37.4,39.9,40.1,35.1,33,32.1,32.3,28.8,23.2
1963,24.2,28.3,30.2,35.2,38.1,37.6,34.7,32.7,32.9,33.1,27.7,24.8
1964,22,25.5,34,37.7,38.3,39.7,32.9,33.2,32.1,34.5,29.1,24
1965,24.2,24.4,29.8,34.6,39.4,41,34,33.5,33.7,32.3,28.9,24.6
1966,24.3,28,32.6,38.2,41.2,38.7,35.8,33.1,33.8,33.5,28.8,24.5
1967,23.3,28.8,29.3,36,40.3,39.9,34.1,31.8,33.2,32.6,26.9,23.2
1968,20.3,23.8,31.3,36.7,40.4,37,33.7,33.4,35.3,32.2,29,23.4
1969,21.6,26.8,35.3,36.8,38.3,39.4,33.9,32.9,32,33.3,30.1,25.5
1970,22.1,24.6,30.7,39.7,39.9,36.8,34.6,33,32.8,33.1,29,25.2
1971,21.4,25.8,31.9,36,36.1,35,32.4,31.7,33.6,31.8,28.2,25.3
1972,23.7,23.2,32.8,35.7,41.9,40.2,35.2,32.8,33.1,31.3,28.3,24.1
1973,21.8,25.6,31.2,40,39.8,36.7,34.7,32.2,32.8,31.1,28.5,22.6
1974,22,24.9,33.1,38.9,39.2,37.5,33.6,32.9,33.6,33.6,28.6,21.8
1975,19.7,24.3,30.6,37.7,40.7,37.4,32.4,32.4,30.8,32.9,28.7,24.2
1976,22.3,24.4,30.1,35.6,38.7,37.1,34.1,31.8,32.9,33.1,30.7,24.4
1977,21.8,25.1,33.5,35.7,35.9,37,32.6,32.9,32,32,29.5,22.6
1978,21.1,23.2,27.7,36.3,41.3,37.3,33,32.7,32,32.6,27.8,24.4
1979,22.2,22.7,28.8,37.6,39.4,37.9,33.9,33.7,34.4,32.9,29.6,22.2
1980,22.2,25.8,29.5,38.9,40.3,36.1,32.4,32.9,33.1,31.6,28.8,24.3
1981,19.9,26.1,29.2,36.9,37.8,38.4,32.5,32.9,33.2,33.2,27.3,22.9
1982,22.1,23,27.3,35.1,36.4,37.4,35.9,33,34.2,31.7,27.5,24
1983,20.7,23.3,29.7,33.2,37.4,37.6,35,33.7,32.5,31.1,28.5,23.1
1984,20.5,24.1,34,36.8,41.8,36.9,33,33.2,32.6,33.5,27.9,23.9
1985,20.4,26.5,34.7,38,39.7,38,32.5,32.7,32.2,30.8,28.6,23.4
1986,22.4,24.7,29.9,35.8,36.6,37.8,32.9,33,33,30.9,28.9,22.6
1987,22.5,26.1,32.2,37.7,37.7,39.9,35.2,33.7,33.7,32.8,30.3,25.2
1988,24.1,26.4,31.1,38.1,40.3,37.1,32.3,32.2,33.2,33.8,28.2,23.5
1989,20.6,24.1,30.1,36.9,39.8,36.3,34.3,32.6,33,32.7,27.7,22
1990,25.3,22.4,27.8,35.8,36.8,37.9,32,32.4,31.7,31.3,28.7,22.5
1991,19.5,25.3,30.5,34.9,39,36.7,34.9,32,32.4,32.4,26.8,22
1992,20.9,22.4,30.5,36.2,37.2,37.3,33.5,31.5,32.1,31,27.5,22.6
1993,20,26.2,26.7,33.9,38.1,38.9,32.9,32.9,32.4,32.2,29.5,24.6
1994,22.4,24.2,33.7,35.7,39.9,38.3,33.2,32.5,33.8,32.7,28.6,24.5
1995,19.3,24.3,29.7,36.2,40.8,39.2,34.9,31.8,33.2,33.5,28.9,24.2
1996,21.6,25.4,31.6,36.9,39.5,39,33.7,32.3,33.3,31.5,29.2,24.4
1997,21.9,24.7,30.4,35.6,37.4,36.5,34.5,33.1,32.6,30,25.7,22
1998,21.7,25.2,28.6,36.5,40.1,39.6,33.1,32.7,32.8,32.5,29.9,26.4
1999,22.3,27.3,33.7,38.6,39.1,36.9,34.6,33.3,32.7,32.3,30.8,25
2000,23.3,23.4,29.9,38.6,38.3,35.8,33.6,33.3,33.3,34.2,30.2,25.6
2001,21.9,26,30.7,35.7,38.6,36.7,34,34,34.4,33.7,30.6,24.1
2002,22.8,26,32.5,37.4,41,38.3,35.7,33,31.2,32.6,29.7,24.2
2003,24.2,25,30.5,38,38.6,39.2,33.6,33.2,33.2,33.3,29.4,24.1
2004,22.5,25.7,34.2,39.1,40.4,36.7,34.4,33.7,34.7,32.1,29.2,26.4
2005,23.6,25.2,32.6,36.7,37.7,40,33,34.4,33.4,32.3,29.4,23.1
2006,23.9,29.6,31.3,36.9,39.2,37.6,33.7,32.9,33.5,33.2,29.8,24.5
2007,23.2,24.2,31.1,38.1,37.3,37.9,34.2,33.7,34,33.9,30.4,22.5
2008,22.6,25.1,33.4,35.5,38.1,35,32.4,32.5,33.4,33.8,30.9,26.3
2009,23.1,27.5,33.1,38.4,39.4,38.8,34.3,34.5,32.3,32.9,30.1,25.1
