1901,19.7,23.8,30.6,36.9,39,39.6,34.7,33.1,32.9,33.2,28.4,23.1
1902,23.5,26.3,32.2,36.3,39.1,37.9,33.4,33.1,32.9,30.8,27.5,23.1
1903,21.8,23.8,29.2,36.5,39.8,38.4,35.2,33,33.5,31.6,27.8,23.5
1904,22.2,26.2,30.7,38.1,37.9,37.4,33.3,32.5,32.6,31.8,26.5,22.6
1905,19.4,22.6,26.9,33.6,38.5,38.7,33.7,32.9,32.9,32.2,27.9,22.6
1906,20.7,22.5,28.8,37.4,40.5,37.5,34,32.5,33.2,31.9,28.9,24
1907,24.1,22.5,26.7,34.3,37.7,38.2,34.6,33.1,33.9,33.2,28.5,22.8
1908,21.9,25.3,31.3,39.3,39.5,38.9,33.6,32.7,33.3,32.4,27.1,22.4
1909,21.9,24.1,32.7,35.1,39.5,36.3,33.8,33.2,33.9,33.2,30,23.7
1910,22.7,24.6,31.3,36.7,38.6,36.4,32.7,32.6,32.6,31.1,27,22.7
1911,22.5,25.3,28.1,36.3,40.1,36.6,34.8,32.9,32.1,31.4,26.8,22.5
1912,21.9,25.8,30.2,35.2,37.9,37.6,33.3,32.3,32,31.8,26,22.6
1913,22.3,23.5,28.1,37.1,37,35.3,33.4,33.1,33.4,31.5,26.2,21.5
1914,23.6,24,29,35,37.7,36.8,33.3,32.6,32.4,30.1,27.5,23.1
1915,22.9,23.9,29.6,36.2,39.4,37,34.2,32.8,32.8,34.3,29.1,23.4
1916,22.4,24.5,33.9,37.4,40.1,35.9,32.9,32.6,32.4,31.9,28.2,22.2
1917,22,24.4,29.1,33.2,34.8,36,33.3,32.6,31.6,31.1,28.1,22.7
1918,21.2,25.7,31,34.8,39,35.7,34.6,32.6,33.1,32.1,27.2,21.4
1919,21,23.6,30.4,34.3,37.3,37,33.2,32.7,32.3,31.6,27.5,22.4
1920,23.5,23.5,28.7,36.3,36.2,36.8,33.2,32.7,32.6,32.1,28.2,24.7
1921,21.9,23.6,33.5,38,41.6,36.7,33.3,31.8,31.4,29.3,27.1,23.2
1922,21,26.1,32.6,37,40.7,36.7,33.5,32.1,32.2,30.8,27.6,21.6
1923,22.8,23.5,31.4,38.2,39.4,39.6,33.5,33,32.6,31,27.9,23.1
1924,21.3,24.9,32.6,37.9,37.4,40.6,33.7,32.6,31.9,32.2,27.5,23.6
1925,20.3,24.5,31,37.5,38.7,35.9,33,32.9,32.6,31.5,26.8,23.3
1926,21.7,25.9,28.4,33.3,37.4,40,34.1,32.8,32.9,31.6,25.9,23.3
1927,21.3,23.1,29.6,36.4,37.7,38.1,33.8,32.4,33.2,31.8,27.4,24.1
1928,21.4,25,31.1,35.8,40,37.1,33.7,33.7,34.1,33,27.7,23.2
1929,21.7,24.3,32.1,36.7,40.4,37.6,33.6,32.3,32.9,31.2,28.1,22.4
1930,20.7,24.4,32,36.5,39,37.2,33.3,32.9,33.4,31.6,27.4,23.5
1931,23.5,23.1,30.4,38.5,39.1,39.4,33.7,33.7,32.4,31.6,27.7,23.8
1932,23.9,23.7,31.5,36.5,38.8,39,34,32.8,33,32.2,29.1,23.1
1933,20.8,25.1,31.4,34.4,36.4,36.9,33.3,32.8,32.7,31.7,28.4,23.9
1934,21.1,26.3,30.2,37.4,39.3,36.9,33.4,32.3,33.4,31.8,28,22.2
1935,19.9,24.9,31.1,33.7,40.4,39.2,33.3,32.1,32.7,31.6,28,21.9
1936,20.9,23.5,30.9,35.7,39.2,35,32.6,32.2,32.3,31,28.1,21.3
1937,21,23.9,29.9,34.5,38.2,37.5,33.7,32.4,33,30.9,26.4,22.5
1938,21.1,23,32.2,37.6,39.1,35.8,32.8,32.6,33.3,32.1,26.2,24.1
1939,22.5,23.9,28.2,36,40.4,36.6,33.3,32.9,32.8,31.6,28.2,24.1
1940,22.1,24,27.8,35.7,39.2,38.1,33.6,33,32.3,32.5,28.9,22
1941,21.1,25.6,33.1,39,39.4,36.7,34.6,33.2,33.4,32.7,28.1,25
1942,21.5,25.8,32.7,37,39.6,39,33.4,32.6,32.5,32.5,29.3,22.8
1943,22,25.5,31.8,34.7,40.1,38,33.7,32.4,33.7,32.4,30.1,24.2
1944,20.8,23.7,29.9,34.9,41,37.5,33.6,33.2,33.3,32.3,28.9,25.2
1945,20.1,23.7,31.4,35,39.3,38.8,33.9,33.3,33,31.1,28.4,22.3
1946,24.4,27,30.9,36.1,37.6,37.3,33.4,33.6,33.9,31.7,28.6,24
1947,21.1,25.6,31.6,38.2,39.6,39.1,33.8,33.4,33.3,31.6,28.9,23.9
1948,22.7,24.5,30.1,38.2,40.4,39.4,33.6,32.6,32.9,31.7,27.8,22.7
1949,24.1,24.6,31.4,36.6,37.7,38.8,33.5,32.9,33,32.9,27.7,21.7
1950,22.9,24.2,29.6,36.7,39.4,37.1,33.2,32.6,32.6,32.1,28.4,23.2
1951,20.9,25.6,31,35,39.4,38.1,34.4,33.4,32.9,34,29.1,23.8
1952,23.7,26.7,29.5,37.2,39.4,37.2,33.6,32.6,33.7,33,28.7,23.9
1953,20.6,27.3,34.1,37.8,39.9,38.4,33.3,32.9,33.3,32.2,28.5,24.9
1954,20.8,25.8,32.3,38.2,41.1,37.9,33.7,32.8,33.2,30.9,28,22.2
1955,21.2,26.2,32.9,35.2,38.5,37.8,33.1,31.9,32.3,30.5,29.1,22.3
1956,21.4,27.3,31.4,38.5,40.3,35.9,33.2,32.8,33.1,30.9,28.5,21.4
1957,20.3,24.5,28.9,36.1,39.7,37.9,33.7,33.1,33.2,32.2,29.7,23.6
1958,22.8,25.1,31.6,38.2,39.8,39.6,33.3,32.4,32.9,32.1,29.8,23.9
1959,22.4,24.9,33,37.3,39.7,38.3,33,32.8,32.6,31.1,28.4,24.9
1960,21.7,29.8,30.1,36.4,40.5,38.9,33.4,32.7,33.1,31.6,28.8,25.1
1961,22.1,22.6,31.6,37.3,39.3,37.6,34,32.8,32.7,30.7,25.5,21.2
1962,21.4,24.6,31,36.9,39.2,39.2,34.7,32.8,31.8,32.1,28.6,23.1
1963,24.2,28.2,30,34.8,37.5,37.2,34.4,32.6,32.7,32.8,27.5,24.8
1964,22.1,25.5,33.7,37.2,37.7,39.3,32.7,33,31.9,34.3,28.9,23.9
1965,24.2,24.4,29.5,34.4,38.9,40.3,33.6,33.3,33.5,32,28.8,24.5
1966,24.4,27.8,32.3,37.7,40.7,38.3,35.3,32.9,33.4,33.1,28.7,24.3
1967,23.2,28.6,29,35.7,39.7,39.3,33.8,31.7,32.9,32.4,26.6,23.1
1968,20.4,23.9,31.1,36.3,39.6,36.4,33.4,33.3,35.1,31.8,28.8,23.4
1969,21.7,26.7,34.9,36.4,37.8,39,33.6,32.7,31.9,33,30,25.5
1970,22.2,24.6,30.6,39.4,39.4,36.5,34.2,33,32.7,32.9,28.8,25.1
1971,21.4,25.6,31.6,35.5,35.6,34.6,32.2,31.6,33.5,31.4,28,25.1
1972,23.7,23.2,32.5,35.4,41.3,39.6,34.8,32.7,32.9,31,28,23.8
1973,21.8,25.5,30.9,39.5,38.9,36,34.3,32,32.7,30.8,28.2,22.4
1974,21.9,24.8,32.8,38.5,38.6,37.1,33.3,32.6,33.4,33.3,28.5,21.9
1975,19.8,24.2,30.4,37.3,39.9,37.1,32.1,32.3,30.6,32.6,28.5,24
1976,22.2,24.4,30,35.5,38.1,36.4,33.8,31.5,32.5,32.6,30.4,24.2
1977,21.7,25,33.3,35.3,35.4,36.5,32.4,32.7,31.9,31.6,29.3,22.5
1978,21,23.1,27.5,35.9,40.6,36.8,32.7,32.5,31.7,32.3,27.6,24.3
1979,22.3,22.7,28.9,37.2,39,37.4,33.7,33.5,34.1,32.5,29.4,22
1980,22.2,25.7,29.4,38.6,39.5,35.8,32.2,32.8,32.9,31.1,28.6,24.1
1981,19.8,25.9,29.1,36.5,37.2,37.9,32.3,32.7,33,32.9,27.1,22.8
1982,22.1,23,27.4,35,36,36.9,35.6,33,34,31.4,27.3,23.9
1983,20.8,23.5,29.4,33.2,36.8,37.2,34.6,33.6,32.4,30.9,28.4,23.1
1984,20.5,24.3,33.8,36.5,41,36.6,32.7,33,32.4,33.3,27.7,23.8
1985,20.4,26.4,34.4,37.7,39.1,37.5,32.1,32.5,32,30.8,28.4,23.4
1986,22.4,24.7,29.8,35.4,36.1,37.4,32.6,32.9,32.8,30.6,28.8,22.6
1987,22.4,26.1,31.8,37.2,37.3,39.2,34.8,33.4,33.5,32.3,29.9,25.2
1988,24.1,26.3,31,37.8,39.6,36.6,32.1,32.1,33.1,33.5,28,23.5
1989,20.5,23.9,30,36.7,39.3,35.9,34.1,32.6,32.8,32.4,27.6,21.8
1990,25,22.3,28.1,35.7,36.2,37.5,31.8,32.4,31.6,31.2,28.6,22.5
1991,19.7,25.3,30.6,34.7,38.4,36.3,34.6,31.9,32.2,32.3,26.7,22
1992,21,22.5,30.6,36,36.6,36.8,33.2,31.5,32,30.8,27.5,22.5
1993,20.3,26.2,26.7,33.7,37.6,38.2,32.9,32.7,32.2,32.1,29.3,24.5
1994,22.6,24.2,33.6,35.5,39.4,37.8,33.1,32.5,33.7,32.6,28.4,24.4
1995,19.3,24.2,29.7,36.3,40.4,38.6,34.5,31.8,33,33.2,28.8,24.2
1996,21.6,25.5,31.5,36.5,39,38.3,33.4,32.2,33.3,31.3,29.2,24.4
1997,22,24.6,30.3,35.4,36.8,36.3,34.3,33,32.4,29.8,25.7,21.9
1998,21.8,25.3,28.5,36.2,39.5,39.1,32.8,32.5,32.6,32.4,29.7,26.2
1999,22.5,27.3,33.5,38.1,38.6,36.4,34.2,33.1,32.5,32,30.4,24.9
2000,23.3,23.4,29.8,38.2,37.8,35.5,33.3,33.1,32.9,33.8,30,25.5
2001,22.1,25.9,30.5,35.5,38,36.4,33.8,33.8,34.3,33.4,30.5,24.1
2002,22.7,26,32.3,37.1,40.2,37.8,35.2,32.9,31.2,32.4,29.5,24.2
2003,24.2,25,30.4,37.7,38,38.5,33.4,33.1,33,33.2,29.4,24.1
2004,22.5,25.8,34,38.7,39.8,36.4,34,33.7,34.7,31.7,28.9,26.2
2005,23.5,25.3,32.4,36.4,37.2,39.4,32.9,34.2,33.2,32.1,29.2,23.2
2006,24,29.7,31.3,36.5,38.7,37.2,33.4,32.7,33.3,32.8,29.7,24.4
2007,23.3,24.3,31.2,37.8,37.1,37.6,33.9,33.6,33.8,33.7,30.3,22.6
2008,22.6,25.1,33.2,35.4,37.6,34.9,32.1,32.5,33.2,33.5,30.7,26.2
2009,23.1,27.6,32.9,38.1,38.8,38.2,34.1,34.3,32.1,32.6,29.7,25
