1901,17,20.7,22.7,24.5,23.5,22.7,21.8,21.7,21.4,21.5,19.7,18.1
1902,18.6,20.2,23.4,25.8,24.5,21.8,21.8,22.1,21.3,20.6,19.7,19
1903,18.9,21.1,24.2,25.2,24.3,22.8,21.8,21.6,21.2,21.4,19.7,19.2
1904,18.8,21,24.1,25.2,24.3,22.9,21.8,21.9,21.5,21.5,19.9,19.1
1905,17.6,19,23,25.1,24.3,22,21.9,21.2,21.3,21.3,20.9,21
1906,16.3,22.2,24.4,27.4,23.9,23.2,21.2,21.3,22,21.9,19.5,20.4
1907,18.1,18.1,21.9,25,25.5,22.5,21.4,21.3,21.3,23,18.5,16.7
1908,18.1,19.7,22.4,26,25.5,22.8,21.6,21.2,21.3,21.3,17.9,16.4
1909,17.2,20.8,25.9,24.1,23.8,21,20.5,19.9,21.4,20.3,19.6,17.5
1910,16.2,21.5,22.5,24.3,24.7,23.8,22.3,21.9,21.7,20.2,19.7,19
1911,17.7,20.3,23.5,25.2,24.3,21.7,21.8,21.3,21.2,21.1,19.2,17.3
1912,18.9,21.1,23.8,25.3,24.8,23.1,22.1,21.9,21.9,21.2,18.7,18.8
1913,19.3,21.2,21.6,23.8,24.9,23.9,22.8,23.3,23.2,21.2,18.4,18.2
1914,20.6,20.1,21.5,24.9,25.9,24,22.8,22.4,22.4,22,21.3,18.5
1915,17.6,20.1,24.5,24.5,24.2,21.9,21.9,21.6,21.1,21.1,19.3,18.6
1916,17.2,19.3,23.8,24.5,23.6,22,21.9,20.9,20.4,20.5,18.2,18.7
1917,18.9,21.1,22.8,24.3,23,21.7,21.8,21.7,20.3,20.4,17.7,18.4
1918,17.7,19.5,22.3,24.5,23.7,22.7,21.8,20.4,20.2,21,19.1,19
1919,18.8,21.2,24,25.2,24.3,22.5,21.6,21.7,21.3,21.4,20,19
1920,18.7,21.1,23.9,25.2,24.3,22.7,21.6,21.7,21.4,21.5,19.7,19
1921,19.3,21.1,24,25.1,24.2,22.5,21.7,21.6,21.2,21.5,19.7,18.7
1922,18.7,21.2,24.3,25.3,24.4,22.7,21.9,20.6,20.2,20.5,18.8,18.3
1923,18.8,19.9,23.2,23.1,23.1,22.3,20.7,20.8,21.1,21.5,19.1,19.2
1924,17.5,20.6,23.7,24.6,24.1,22.4,21.1,20.7,20,20.7,18.5,18.5
1925,16,20,23.4,24.8,23.1,21.2,20.7,20.8,20.7,21,19.4,17.9
1926,18.5,20.7,23.5,24.5,23.6,21.6,20.7,22,22.4,21.1,19.2,19.6
1927,17,20.4,22.4,24.6,23.4,22.1,20.9,20.6,20.6,20.2,19.2,19
1928,17.5,20,22.6,23,23.1,22,21.3,20.1,21,20.6,19.2,18.4
1929,17.7,19,21.9,23,23.4,22.4,22.8,21,21.2,19.9,17.4,16.8
1930,19.5,22.8,23.6,24.7,23.8,22.2,22.1,21.7,22.1,19.9,21.6,21
1931,20,21.6,23.5,24.9,23.7,22.5,22.1,21.7,20.5,21.1,19.7,20
1932,17.3,20.3,24.4,26.5,24.1,21.6,21.3,22.9,22,22.3,21.6,20.8
1933,20.6,22.2,24.4,24.7,22.6,21.9,21,20.8,21.5,20.9,19.4,18
1934,17.1,21,24.1,25,24.2,21.5,20.8,21.2,20.4,20.7,21.7,20.2
1935,17.3,20.4,26.1,26.6,23.8,20.9,20.5,20.6,19.9,20.1,19.1,17.4
1936,17.7,20.3,25.5,23.3,22.1,21.8,20.5,20.4,20,19.9,18,17
1937,18.6,21.2,25.3,26.6,26,24.1,22.7,21.6,21.8,22.8,21.6,20.5
1938,20.2,22.6,23.8,26.5,26.2,24.4,22.7,22,22.4,22.8,21.8,19.2
1939,20.3,21.2,25.4,24.3,24.8,23.6,22.6,21.6,21.5,21.8,20.7,20.3
1940,18.9,21.1,23.9,25.1,24.2,22.6,21.7,21.6,21.4,21.5,19.8,18.8
1941,20.3,20.3,25.1,25.8,26,23,22.5,22.2,22.2,23.1,21.7,20.4
1942,18.7,22,24.3,25.8,24.5,23.9,22.4,21.3,22.3,22.3,21.1,19.1
1943,18.4,20.9,24.1,25.1,23.9,22.4,22,21.6,21.4,21.6,21,20.2
1944,18.4,20.3,24.2,24.7,25.5,22.8,22.5,21.7,21.9,22.2,19.9,19.9
1945,19.6,19.8,23.3,25,24.7,23,22.3,21.4,21.9,21.4,19.7,17.9
1946,19.3,20.3,24.6,25.4,24.4,22.1,21.6,21.2,20.9,19.9,20.1,18.3
1947,18,23.5,23.3,25.6,25.7,23.1,22.1,21.9,21.5,21.8,19.4,19.3
1948,17.5,21.4,23.1,24.4,23.9,21.5,21.5,21.6,21.8,22.1,19.9,19
1949,18.8,20.3,24.8,25.9,24.3,22.2,22.2,21.6,21.8,22.4,20.9,18.2
1950,19.1,19.5,22,25,24,23,21.4,21.1,21.6,21.4,19,18.2
1951,18.6,20.1,24.2,24.4,23.4,22.7,21.1,21.6,21.6,22.3,19.2,18.2
1952,19,19.7,23,24.6,23.5,21.9,21.2,21.4,21.2,21.5,19.5,18.4
1953,19.1,20.4,23.6,24.5,23.4,21.8,21,21.2,21.1,21.7,19.3,17.9
1954,17.8,20.8,23.2,23.9,23.3,22,20.9,21,21,21.1,19.6,17.9
1955,18.1,19.1,22.7,24.2,23.6,21.3,20.6,21.4,21,21.9,18.7,18.2
1956,18,20.2,23.6,25,23.7,21.7,20.8,21.3,21.2,20.6,19.7,19.9
1957,18.1,19.4,22.9,24.6,23.7,22.4,21.6,21.4,21.2,21.6,20.4,19.7
1958,19.9,19.6,23.8,25.4,24.3,21.7,21.4,21.8,21.4,22.1,21.5,19
1959,20.1,21.1,23.7,24.2,24,22.6,21.6,21.3,21.5,21,19.3,18.1
1960,19.1,20.2,23.3,24.2,23.5,22.1,21.2,21.7,21.4,22,19.5,20.1
1961,19.7,19.8,22.5,24.8,24.1,22.4,21.6,21.2,21.1,20.6,18.5,17.4
1962,17.6,19.8,23.6,24.5,23.4,21.5,21.4,21.6,21.1,21.5,22,18.4
1963,18.4,22.3,23.2,24.9,23.7,23.1,21.8,21.6,22,22.3,19.1,17.7
1964,19.5,19.9,23.8,24.7,24,21.8,21.8,21.4,21.2,21.4,19.8,20.2
1965,20,21.2,22.3,24.1,24,22.4,21.7,21.8,21.5,21.8,18.6,17.9
1966,18.3,19.8,23.4,25.6,24.5,22.5,22.1,22,21.5,21.7,19.8,19
1967,17.8,21.5,23.7,24.7,24.2,22.1,22,21.6,21.5,21.4,19.6,20.4
1968,17.9,21.3,23.7,23.6,23.3,22,21.4,21.7,21.5,21.9,20,20
1969,18.5,21.6,25.1,25.6,25.1,23.2,21.7,21.7,21.5,22,19.4,18.3
1970,19.5,21,24,26.3,24.7,23.7,21.8,21.4,21.3,22,19.5,19.2
1971,17,20.7,25.4,24.4,23.6,22.3,21,20.5,20.5,20,18.2,18.6
1972,17.6,21,24.1,24.8,24,22,21.7,21,21,20.8,18,18.9
1973,18.9,21.5,23.8,25,23.9,22.6,21.8,21.4,20.6,21.5,18.2,18.5
1974,18.2,19.5,24.1,24.7,23.4,22.2,20.9,20.8,20.3,21.3,18.9,17.4
1975,17.4,20.3,23.8,24.9,23.3,22.1,20.8,21,20.5,20.5,19.4,18.2
1976,17.7,21.8,23,23.9,23.4,21.3,21.1,20.6,20.6,20.6,19.8,18
1977,19.5,20.4,23,25.6,24.7,23.1,22,21.7,21.4,20.6,18.2,18
1978,18.5,21.5,23.6,24.3,23.4,22.5,21,21.2,20.7,21.5,19.2,18.9
1979,19.3,19.6,24.7,25.1,24.4,21.7,21.5,22,20.8,21.6,20,18.2
1980,20.2,22,24,25.4,24.7,22.8,21.5,21.2,21.1,21.1,19.9,18.3
1981,19.1,21.9,24.8,25.4,24.4,23,22.2,22,21.8,22,20,19.3
1982,18.9,22.2,24.6,25.9,24,22.8,22.3,22.4,22.2,21.9,19.6,19.5
1983,18.5,23.3,24.9,26.9,25.5,23.4,22.6,22.6,22.1,21.7,20.7,21
1984,19.7,21.3,25.3,25.5,24.6,23.5,22.6,22.7,21.7,22.5,21.4,19.3
1985,20.6,20.9,26.6,25.7,24.8,22.9,21.8,22,21.5,21.6,20.6,19.2
1986,18.7,22,25,25.8,24.6,23.1,21.7,22.1,21.3,21.7,19.9,18.2
1987,19.9,22.3,24.5,26.2,25.9,23.2,23.1,22.6,22.7,22.1,20.4,20
1988,20.6,22,26.4,25.4,25.8,23.2,22.3,21.9,21.9,21.4,20.6,19.6
1989,18.1,20.4,23.4,26,24.9,22.9,21.8,22,21.9,21.1,19.9,19.8
1990,20.6,21.1,23.7,25.9,24.5,23.7,22.2,22.5,22.2,22.7,22.4,21
1991,19.9,22.8,24.6,24.9,23.6,22.5,21.7,22,22.1,20.7,19.8,18.7
1992,19.1,21.1,25.2,26.2,23.8,22.5,21.5,21.1,21,20.6,19,19.1
1993,17.5,20.9,23,25,24.3,22.7,21.3,21.3,21,21.1,20.7,19.6
1994,19.8,21.3,25.9,25.8,24.2,22.7,22.1,21.7,21.6,21.3,19,18.9
1995,17.7,20.1,25.3,25.7,24.5,23.1,22.6,21.9,21.4,21.6,19.3,20.2
1996,19.7,22.8,25.9,24.6,24.6,22.6,21.9,21.7,21.5,21.5,19,19.2
1997,20.2,20.1,25.1,24.8,23.8,22,22.1,21.7,21.9,22.1,21,19.7
1998,19.4,22.5,24.3,27.1,25.3,22.8,22.4,22,21.7,22.3,20.9,19.9
1999,20.2,21.4,24.9,25.2,24.4,23.6,21.9,21.6,21.1,21.4,20.9,19.1
2000,21.5,19.5,24,25.9,25.3,22.3,21.9,21.5,21.6,21.4,19.9,19
2001,18.3,20.5,24.1,26.1,24.3,22.9,22,21.8,21.7,22.1,21.2,20.6
2002,19.2,21,25.1,26.1,24.9,23.1,22.5,22.4,22.1,21.9,21,19.3
2003,20.4,23.5,24.7,25.1,24.6,22.6,21.9,22.2,21.6,22.3,20.6,19.4
2004,20.9,21.8,25,25.7,24.6,22.5,22.4,22.3,22,21.7,20.6,20.3
2005,19,24.4,26.8,26.8,25.4,23.3,22.6,22.3,22.2,22.1,21.2,20.3
2006,19.3,22.3,25.6,26.6,24.7,23.5,23.2,22.4,22,22.7,20,19.3
2007,18.7,21.7,24.7,25.6,24.7,23.4,22.2,22.1,21.8,22.5,21.5,20.3
2008,17.8,21,24.5,25.8,24.6,23.3,22.5,21.8,22.1,23,20.1,20.8
2009,19.4,22.9,24.9,25.2,24.9,23.3,22.3,22.4,22.3,23.5,20.5,19.4
