1901,21,21.2,30.2,33.6,36.7,38,35.4,33.1,32.4,32.9,29.1,24.5
1902,23.7,24.7,31.4,35.1,36.6,35.3,35.7,33.6,32.7,32.6,29.4,24.2
1903,21.1,23.6,26.3,31.4,36.9,37.3,35.6,34.5,34,33.4,27.5,22.4
1904,21.6,25.5,27.9,34.3,37,36.2,34.7,33.5,33.6,32.8,30.2,24.5
1905,20.2,21.9,26.4,31.9,37.4,36.5,35.6,33.6,33.2,32.9,30.3,24.7
1906,21.5,21.3,27.1,32.3,37.4,36.4,35.1,33.1,33.3,33,30.7,25.5
1907,24.9,22.2,28.3,32.3,35.1,36,36.1,33.6,32.2,31.7,29.5,23.4
1908,22.8,24.2,27.7,33.1,36,37,33.6,33.2,32.3,31.9,28.5,23.4
1909,21.4,23.6,28.9,31.7,35.6,37,34.3,32.3,32.3,32.3,30.1,23.2
1910,21.9,24.5,28.6,31.8,35.6,36.8,33.1,32.9,32.3,32.1,28.3,23
1911,21,24.7,26.4,32.1,36.4,36.4,33.9,32.7,33.2,32.4,27,23.5
1912,23.4,25.5,28.3,33.8,36.9,38.1,35.7,33,32.6,32.4,27.6,23.3
1913,23.5,22.8,26.6,33.8,36.4,37.5,34.2,32,31.6,32.3,28.1,23.1
1914,23.7,22,27.3,32.9,37.5,36.6,34.2,33.2,33.7,32.5,29.7,22.7
1915,22.4,23,29.4,31.7,36.1,37.7,35.6,33.6,33.8,33.3,29,23.6
1916,23.6,22.5,30.5,33,36,37.1,35,32.8,32.5,31.7,26,22.9
1917,23.4,25.5,27.9,32.2,36.9,37.1,35.4,32.7,32.1,31.2,26.3,22.6
1918,21.5,24.5,28,31.5,35.8,35.6,34.7,33.4,32.2,32.6,28.1,22.7
1919,21.7,24.6,28.9,33,36.4,36.4,34.8,33.4,32.1,31.8,27.7,22.8
1920,22.4,23.4,29.8,32.4,35.7,37.5,35.1,33,33.2,33.5,29.3,21.9
1921,22.6,24.3,30.7,34.6,36.5,37.3,35.2,32.3,32.9,31.9,28.8,23.8
1922,22.3,23.7,29.4,33.9,35.9,36.5,36,33.5,33.3,31.9,28.3,24.4
1923,22,23,29.6,32.9,35.5,37.1,35.9,33,32.7,31.8,27.5,22.3
1924,21.7,24.2,31.4,33.7,35.9,37.5,35.6,32.9,32.5,32,27.6,23.7
1925,20.8,21.4,30.5,35.3,36.5,37,34.8,33.4,32.9,33.8,27.8,23.5
1926,22.6,26.7,28.2,31.1,35.6,37.4,36.1,34,32.6,32.2,27,24.9
1927,20.9,22.6,27.9,32.8,36.7,37.2,35,32.3,32.8,33.1,29.4,24.4
1928,22.7,24.6,29.9,34.4,36.9,36.7,35.7,33.8,33.1,33.4,28.9,22.9
1929,21.6,23.2,30.9,34,36.9,36.6,34.3,31.6,31.8,32.1,28.4,21.6
1930,21.2,24.2,29.1,32.4,36.7,37.5,34,32.7,33.3,32.4,28.4,23.6
1931,23.4,22.6,28.5,34.2,36.3,36.3,34.6,34.4,32.6,32.2,29.4,24.4
1932,24.1,25.8,29.4,34.2,36,36.5,34.4,32.7,33.2,32.7,28.5,22.9
1933,21.8,24.5,28.3,32.7,36.5,37.1,34.7,32.7,32.6,32.8,29.5,25.2
1934,19,25.6,28,33.5,35.7,36.5,34.4,34.1,33,32,28.3,25
1935,20.9,24.6,29.1,32.1,34.7,35.7,34.1,33,31.8,32,28.3,24.2
1936,21.1,25.1,27.5,32.9,37.5,36.6,34.4,33.6,34,33.2,28.2,23.8
1937,21.8,25,27.8,32.1,36,36.7,35,33.4,32.7,31.9,28.8,22.1
1938,21.7,24,29.3,33.6,37.1,36.5,34.1,33.2,32.8,32.5,27,23.9
1939,23.3,24.5,27.5,31.1,34.8,37.3,34,32.9,34,32.7,29.5,25.9
1940,24.5,25.7,27.5,32.4,36.4,36.8,35.2,32.5,33.2,33.9,30.3,24
1941,22.6,26.2,30.8,34.5,37.1,36.9,34.4,34.2,32.9,34.5,29.4,25.1
1942,22.8,24.6,29.9,34.3,36.7,36.2,34.6,32.5,33,32.9,30.1,22.1
1943,21.3,24.9,29,32.6,35.9,35.9,34.4,32.7,32.7,32.3,29.3,26.1
1944,23.3,23.9,29.2,33.4,36.1,37.2,34.6,33.1,32.3,32.6,29.9,22.5
1945,21.1,23.9,29.5,32.2,35.7,36.7,34,33.8,33.4,32.2,29.5,22.6
1946,22.2,24.6,28.6,35.4,37.3,37.6,35.2,33.3,32.8,34,27.1,21.3
1947,23,24.6,29.1,33.8,36.3,36.5,34.7,34.6,33.9,32.5,30.4,24.2
1948,22.6,24.3,29.6,34.7,37.9,36,35.1,33.3,33.6,34.1,28.2,24.9
1949,22.6,24.6,29.7,34.3,37.6,37,35.6,33.6,34,31.4,27.2,24.1
1950,22.4,21.9,28.9,32.6,36.9,36.7,34.6,33.6,33.8,32.4,28,22
1951,22.6,23.9,29.1,31.8,36,37.4,35.6,33.8,33.5,34.5,30.3,25.2
1952,22.9,25.7,29.6,34.2,37.6,37.8,35,33.4,32.6,32.5,29.1,24.1
1953,23.1,26.3,31.3,33.4,35.5,37.5,35.5,34.7,33.5,33.2,29.9,27.5
1954,23.1,24.5,30.2,34,37.2,37.3,35.7,34.5,33.5,31.8,29.7,24.6
1955,21.6,25.8,31,32.9,36.4,36.3,34.9,33.3,33.7,32.6,28.9,24.3
1956,21.5,25.7,29.6,33.1,36.9,36.5,33.4,32.5,33.6,32.5,28.6,23.9
1957,20.4,23.5,27.9,31.7,34.8,37.1,35.5,34.3,32.7,31.8,29.8,23.9
1958,24.4,25.6,30.8,34.3,37,38.1,35.1,34.4,33.4,33.3,29.2,24.4
1959,22.8,24.7,31.5,34.4,37.2,36.7,34.7,33.9,32.9,33.8,27.8,23.5
1960,22.7,27.4,27.5,32.4,36.6,37.3,35.3,34.3,33.8,33.2,29.6,23.2
1961,22.7,23.1,30.4,31.9,35.9,36.1,34.8,33.7,32.8,32,27.7,24.3
1962,22.9,26.8,29.7,34.4,37.1,37.5,35.3,33.5,32.2,32.3,28.4,23.5
1963,25.3,27,30,33.1,35.1,36.3,35.5,33.8,33.4,33.1,28.8,24.9
1964,20.7,24.6,31.5,34.1,36.8,36.2,34.8,34.9,33.1,32,27.6,22.7
1965,24.6,25.4,29,30.6,35.4,36.5,34.8,33.1,33.4,33.7,29.5,23.5
1966,24.3,26.6,28.8,32.6,36.4,35.7,35.2,33.4,33.4,33.7,27.7,23.3
1967,21.8,26.1,27.7,32,36.4,36.5,35,33.1,32.5,31.9,29.1,23.2
1968,21,22.2,29.1,33.4,35.3,36.8,35.9,34.1,33.3,33,30,23.5
1969,22.7,23.9,30.9,34.1,35.8,36.9,35.6,33.5,33.3,34,30.2,26
1970,23.3,24.8,28.3,34.2,36.6,36.6,35.4,34.9,33.5,33.3,29.5,24.8
1971,22.3,25.3,29.4,35.7,36.6,37.1,34.3,33.6,33.9,33,29.3,24.9
1972,21.2,21.3,29.4,32.5,37.3,38.3,35.9,34.2,33.9,33.6,29.7,23.9
1973,21.5,25.8,29.6,35.1,37.3,36.9,34.8,33.9,33.3,33.2,29.6,24
1974,23,22.8,31.1,33.4,35.5,36.3,35.4,34.3,34.2,32.7,29.3,23.3
1975,21.7,23.8,28,34,36.7,35.8,35.2,34.2,33.2,33.4,29,26.1
1976,23.5,24.8,28.5,32.7,36.4,36.8,35.3,34,34.1,33.5,29.4,24.5
1977,22.6,26,33.8,35.8,38.1,37.3,34.7,33.6,33.4,34.7,31.3,26.9
1978,24,25.3,29.8,35,38,37.7,34.3,33.6,33,33.1,29.7,25.4
1979,23.2,23.8,27.4,34.8,34.9,38,35.5,33.7,34.1,32.6,29.2,24.1
1980,23,25.6,28.8,35.6,37,37.4,35.1,34.4,33.7,33.1,28.8,23.8
1981,24.4,26.8,29.6,35.8,38.1,39.3,35.3,34.2,35.9,34.5,29.6,25.6
1982,22.4,23,28,33.8,36.7,38.5,36.4,34.8,35.4,34.4,29.4,25.2
1983,24.6,24.5,28.9,32.4,37.6,38.3,36.2,34.4,34.6,34.6,30.8,25.2
1984,21.8,22.7,31.1,35,37,37.3,34.6,33,33.2,31.8,29,24.2
1985,21.9,25.3,30.9,32,36,35.9,32.9,32,32,32,29.1,23.4
1986,21.6,23,27.9,32.9,36.5,36.3,33.6,32.2,32.2,32.8,28.7,21.8
1987,22.8,25.1,29.1,32.9,34.9,36.8,35.6,34.9,33.6,33.4,30.1,23.8
1988,23.8,25.2,28.8,34.1,36.7,37.4,35.2,34,34.8,33.8,29.3,24.9
1989,22.6,24.3,28.5,32.6,35.7,36.3,34,33.3,33.4,32.5,29.6,23.8
1990,24.8,24.2,27.8,33.1,35.7,35.8,33.9,33,32.2,31.5,28.2,23.4
1991,21.6,23.5,28.7,33.4,35.4,36.7,35.3,33.3,32.3,32.4,28.8,24.6
1992,22.3,23.9,27.7,31.3,35.2,37.8,35.1,33.1,33.1,32.3,28.3,25.1
1993,23.4,26.6,28.4,33.2,37.1,37.2,35.6,34.8,33.2,34.3,29.8,25.7
1994,22.6,24.1,30.9,32.2,36.2,36.8,32.8,32.2,32.1,32,29.4,23.9
1995,22.8,25.5,27.5,32,36.4,37,34.8,33.4,33.4,33.4,28.6,23.4
1996,21.8,24.9,29.4,33.5,35.5,36.5,34.7,32.4,32.6,31.3,28.7,24.5
1997,22.7,25.6,27.7,29.9,34.8,35.8,35.3,34.2,33.3,32.1,27.9,23.7
1998,23.2,24.6,29.4,34.4,37.2,37.4,34.7,34.5,34.5,34.2,29.7,27
1999,23.6,24.1,30.7,35.5,36.1,36.4,34.4,33.7,33.4,34.4,30.9,26.2
2000,23.7,25.3,29.9,35.2,36.1,36.7,35.2,34.3,33.9,34.6,30.1,26.4
2001,23.8,26.5,31,34.4,38,38,34.7,34.2,34,35.1,31,27.6
2002,24.7,24.2,31.1,35,37.9,37.6,34.6,33.5,32.9,34.4,29.9,25.9
2003,24.8,26.9,30.8,35.4,36.8,37.4,34.4,34.4,33.4,34,28.9,24.7
2004,24.2,27.1,33,35.8,38,37.9,35.1,34.5,33.6,32.9,30.5,26.2
2005,23.3,25,30.6,34.1,36.6,37.4,34.8,33.9,34.3,34.1,30.6,24.8
2006,23.8,24.6,29.2,31.1,37.4,36.9,35.3,33.4,34.3,35.7,30.6,24.4
2007,24.5,27.4,30,35.5,37.2,37.2,35.8,34.5,34.6,33.4,31.1,24.4
2008,22,24.8,32.5,34.5,36.7,37.2,34.9,33.5,34.3,34.6,30.4,25.6
2009,24.7,28,31.6,35,38.1,37.3,36,34.7,34.2,33.9,29.9,25.6
