1901,17.9,19.6,27,31.1,34.4,33.9,30,27.4,28.5,29,24.2,21.4
1902,20.7,22.4,28.6,32.3,34,32.7,30.2,28.9,27.9,27.7,23.1,19.7
1903,19.3,20.1,24.4,29.9,33.5,33.6,29.8,27.8,27.9,27.4,21.6,19.1
1904,19.5,21.4,25.2,31.8,33.9,31.8,28.2,27.6,28.3,27.9,23.3,20.4
1905,18,18.1,24.1,29.2,35.3,32.7,28.5,28.3,28.4,28,24.7,20.2
1906,17.7,19.3,25.2,30.7,34.6,31.7,28.6,27.8,27.2,27.3,24.2,20.4
1907,20.2,20.7,25.3,29.9,32.4,32.6,30.6,26.2,27.3,27.8,24.4,19.2
1908,18.9,20.6,24.9,31.5,33.4,32.4,27.4,26.5,27.3,27,23.1,19.1
1909,18.9,20.9,26.8,29.9,33.1,31.7,27.7,26.6,26.8,26.6,23.3,19.5
1910,19,21.3,26.1,30,33.2,31.1,27.5,27.2,27.8,26.2,21.6,19.7
1911,20.4,21.2,24.4,30.3,34.4,31.2,29.6,27.9,27.6,28.1,23.3,21.6
1912,20.4,22.8,25.7,31.4,34.4,33.6,29,27,27.2,27.4,22.5,19.8
1913,19.3,21.4,24.3,31.9,33.1,31.5,28.4,26.9,27.8,28.4,24,20.2
1914,21.1,20.9,25.2,31,34.8,31.8,28.4,27.5,28.4,27.8,24.9,19.7
1915,19.4,20.2,26.6,30.7,34.5,34,30.3,28.3,29.7,28.7,24.4,20.6
1916,20.1,20.1,28.1,31.8,34.1,30.9,29.6,27.5,28.3,26.8,22,19.3
1917,20.4,21.4,25.9,29.3,32.2,30.7,27.5,27.2,27.2,26,21,19.7
1918,18.1,21.9,26,29.4,34,31.4,29.7,28.1,27.9,28.1,24.9,19.7
1919,19.8,21.2,26.5,30.5,33.8,32,28.3,27.2,27.6,27.1,24.2,19.8
1920,20,20.9,26.8,30.5,31.8,31.1,27.8,27,29,28.5,24.6,20.5
1921,20.1,21.3,28.2,32.6,34.3,32.6,30.1,27.4,27.2,27.4,23.2,21.3
1922,18.8,22.8,27,31.8,33.8,32.1,28.6,27.3,27.4,27.2,23.3,19.2
1923,19.9,20.4,27.2,31,33.1,33.6,28.7,26.6,28.2,27,22.9,21.1
1924,19.5,22,28.3,31.9,32.9,33.1,29.2,27.8,27.5,26.2,21.9,20.2
1925,17.1,19.7,27.2,32.9,33.2,30.9,27.9,28.3,29,29.5,24.5,20.7
1926,20.3,23.6,26.3,29,33.3,34.5,29.3,27.6,27.7,27.4,22.2,19.7
1927,17.9,20,25.1,30.3,33.1,32.4,28.1,26.6,27.7,27.1,21.2,20.3
1928,19.1,21.3,26.2,30.8,33.8,32.2,28.5,27.2,27.4,27.4,23.7,19.1
1929,18.2,20.2,27.7,31.3,34.2,32.2,28.5,27,28.1,27.1,24.3,18.9
1930,19.1,20.4,26.6,30.5,33.9,32.6,27.6,27.1,29.1,28.5,22.6,20.5
1931,20.7,20.4,25.7,32.1,34.1,34,29.5,27.7,27.9,26.7,23,20.2
1932,20.4,20.2,25.7,30.6,33.8,32.4,28.1,27.4,28.1,27.9,22.5,20.1
1933,18.9,21.7,26.4,30.5,32.1,31.6,28.5,26.7,27.4,27,23.4,19.8
1934,17.4,22.2,25.6,31.2,33.5,32.7,28.2,27,27.1,26.5,22.6,20.6
1935,17.3,21.2,25.8,28.7,33.7,33,28.1,27.2,27.2,27,23.4,20.4
1936,18.3,21.3,25.6,30.2,34.8,30.9,28.6,27.7,28.1,27.7,23.8,19.4
1937,18.1,21.8,24.9,30.4,33.6,32.8,27.9,27.5,28,27,24.2,18.9
1938,19.7,19.7,27.7,31.7,33.9,30.8,28.1,27.9,28.8,27.8,22.2,20.4
1939,20.2,21.9,24.4,29.6,33.3,32.1,28.9,28.7,27.7,28,23.2,20.5
1940,20,21.7,24.2,30.1,34.2,32.3,28.6,27.2,27.9,27.8,23.5,19.5
1941,18.3,22,27,31.8,34.1,32.9,28.1,27.8,28.4,28.6,23.6,21.1
1942,18.3,21.5,26.9,32.4,33.7,33.6,28,27.3,27.4,27.1,22.7,19
1943,19.2,20.9,26.6,30.5,34.9,31.3,27.9,26.7,27.5,26.7,23.5,19.9
1944,18.7,20.6,25.4,30.1,34,32.1,28.1,26.9,27.9,26.5,23.3,20.9
1945,17.2,19.9,26.2,30,33.1,32.6,27.5,27.6,27.4,26.9,22,18
1946,18.9,22.4,25.5,32.5,33.2,31.6,28.3,26.6,27.5,27.7,21.4,20.2
1947,18.1,21.3,26.3,30.6,34.1,32.7,29.1,28.7,27.3,25.7,23.2,20
1948,18.8,20.6,26.4,31.8,34.9,32.5,29.3,27.4,27.9,28.4,23.4,19.7
1949,20.7,21.1,26.8,32.1,34.9,32,29,28,28.6,27.7,22.5,19.2
1950,19.7,18.9,25.5,30.6,33.7,32.6,27.9,27.5,27.6,27.2,21.5,18.8
1951,18,20.4,26.1,29.4,33.6,32.4,30,27.4,29.6,29.7,24.8,19.7
1952,19.8,22.6,25.9,32.1,34.6,32.4,28.5,26.8,28.1,28.1,22.9,21
1953,18.6,23.6,28.7,31.5,33.4,32.7,29,27.1,27.9,26.9,22.9,21.1
1954,18,22.3,26.5,31.4,34.6,32.8,29,28.2,26.9,25.6,23.1,19.7
1955,19.7,22,28.1,29.1,33.5,32.1,29.7,27.4,27.3,26.4,21.4,19.5
1956,19.3,21.1,27,31.3,34.2,31.4,26.7,26.7,27.7,26,22,19.9
1957,18.2,19.2,24.9,30.3,32.5,32.3,28.8,27.7,27.5,27.6,24.8,20.7
1958,20.5,21.4,27,32.4,34.2,33.2,28.1,28.6,26.6,26.6,23.1,20.2
1959,18.7,20.8,27.4,31.3,33.9,32.1,27.3,26.3,26.7,27.2,22.9,20
1960,17.7,22.9,24.9,30.2,32.9,31.6,28.7,26.5,28.6,27.4,22.8,21.2
1961,19,19.4,27.2,30.6,33.7,31.1,27.9,27.7,26.3,26,22.8,18.2
1962,17.2,21.5,26,30.9,34.1,32.3,28.4,27.5,27.4,25.5,23.2,20
1963,18.6,22.9,26.1,30.3,33.1,32.2,29,27.4,27,27.3,24.4,20.4
1964,16.9,21.2,27.9,32.2,33.3,31.6,28.2,27.2,27.7,27.3,22.2,19.6
1965,20.6,21.2,25.6,30.1,33.6,32.6,28.8,27.9,27.6,28.4,24.4,19.9
1966,20,23.5,25.5,30.7,33.1,32.4,29.6,27.2,27.5,28.6,24.4,19.6
1967,17.2,22.9,25.6,29.9,33.1,31.2,28.4,26.8,26.9,27.4,24.1,21.1
1968,17.8,19.5,25.7,30.6,32.5,33.1,29,26.8,29,27.7,23.6,19.9
1969,19.2,21.8,28.5,31.7,33.8,32.7,29.3,27.3,28.2,28.3,25.4,20.7
1970,19.5,21.4,26.1,32.2,34.8,31,28.5,27.3,27.1,27.7,22,19.3
1971,18.2,21.1,26,32.5,32.9,30.3,27.3,26.9,27.9,26.7,22.7,19
1972,19.3,18.6,27.5,30.4,33.7,32.9,29.1,27.7,27.9,28.2,23.5,20.2
1973,18.3,22.6,26.7,33,34.8,32.1,27.5,26.9,26.6,26.6,22.6,18.9
1974,18.3,19.8,28.1,31.9,33,32.2,29.4,28.4,29.5,28,22.2,19.2
1975,17.5,20.7,25.1,31.6,33.7,31.5,28.1,27.3,27,26.8,21.4,19.5
1976,19.5,21.5,26.5,30.6,33.3,31,28.6,26.6,26.7,27.8,25.6,20.7
1977,18.5,22.6,28.4,31.4,33.1,31.6,27.9,27,27.2,28.6,25.3,20.6
1978,18.4,21.2,25.4,31.6,34.4,31.8,27.5,27,27.9,27.6,24.5,20
1979,19.7,20.2,25.3,31.1,32.8,33.4,29,26.9,29.1,28.3,25.2,20.8
1980,19.4,22,26.7,31.6,34.5,31.1,28.4,27.7,28.7,28.7,24.5,19.7
1981,18.7,22,26.4,31.7,33.8,33.5,28.2,26.9,28.8,27.6,21.7,19.7
1982,19.4,20.6,24.8,30.2,31.8,32.5,29.4,27.3,28.4,28.6,23.4,20.9
1983,18.5,19.9,25.3,28.8,33.2,32.7,29,27.4,28.4,26.3,21.2,19
1984,17.9,18.7,27.4,31.8,34.4,32,28.2,26.2,26.5,26.5,22.7,20.1
1985,18.8,20.8,28.4,31,34.2,32.1,28.8,27,28.4,26.2,23.6,21.1
1986,19.5,21.3,26.8,31.9,33.7,32.5,28.3,26.9,28.7,28.1,24.4,19
1987,19.8,22.5,27.4,31.7,33.2,33.4,30.5,29.6,29.6,29.4,24.7,20.4
1988,21,23.5,26.8,32.8,35,33.1,28.4,27.9,29.4,27.5,23.4,20.7
1989,18.4,21.4,26.2,30.8,34.4,31.6,28.8,27.4,28.6,28,24.9,20.3
1990,21.4,21.7,25.6,31.6,33.6,31.8,28,27.5,27.5,27.5,23.8,20.4
1991,18.3,21.6,27,30.9,34.2,33.3,29,27.6,27.8,27.2,23.8,20.4
1992,19.3,19.8,26.6,30.4,33.8,34,29.8,27.6,26.8,27.5,23.2,21
1993,19.9,22.2,26,31,34.6,33.4,28.3,28.7,28.4,28.8,24.5,21.2
1994,20.7,20.9,27.5,30.8,34.9,31.8,27.4,27.1,27,27.4,23.8,20.2
1995,17.8,21.7,25.9,30.9,34.4,34.3,29.4,28.2,28.9,29.1,23.6,21.2
1996,20.1,22.8,28.9,31.2,33.8,32.5,29.3,27,28,27.5,23.2,20.4
1997,18.9,21.3,27.1,30,32.4,30.3,28.8,27.2,27.9,26.8,24.9,19.6
1998,19.3,21.5,26.4,32.5,35.3,33.4,28.8,28.8,28.7,28.9,24,20.6
1999,18.9,22.7,27.2,32.4,33.9,31.5,28.8,27.5,28.9,27.5,24.4,20.1
2000,20,20.3,26.3,33.2,33,32.2,27.9,28.4,28.5,29.1,24.9,21.1
2001,19,22.6,27,31.4,33.4,30.4,27,27.3,29,28.5,24.2,21
2002,18.6,21.6,27.4,32.5,34.7,32.4,29.4,27.5,28.2,29,24.6,21.9
2003,19.9,22.5,27,32.5,33.9,32.3,28.2,27.5,27.5,27.2,25.2,20.9
2004,19.5,22,29,32.9,33.7,32.2,29.6,26.6,29.2,27,24.6,21.2
2005,17.9,21.2,27.2,30.6,33.5,33.1,28.8,27.4,28.1,26.8,23.4,19.2
2006,19.6,24.2,25.9,31.3,34.4,31.7,28.2,26.5,28,27.8,23.8,20.9
2007,19.6,22.6,26.3,32.6,33.7,32.8,28.6,27.7,28.6,26.8,24.4,20.3
2008,18.3,19.2,28,31.1,32.8,30.9,28.6,27,28.2,28.1,24.4,22.6
2009,21.3,23.9,28.6,31.9,34.5,33.1,29.1,28.6,29.4,27.8,23.9,21.8
