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