1901,18.5,18.5,19.8,20.2,21,22.1,21.9,22.3,22.1,21.3,20,19.3
1902,18,18.4,19.5,20.3,21.1,22,21.9,22.1,21.8,21.6,20.9,19.9
1903,18.7,19.4,19.9,19.9,20.5,21.8,21.8,22.2,21.3,20.9,20.6,19.3
1904,18.8,19.3,20,20.4,21.1,21.5,21.5,21.7,21.2,21.1,20.2,19.7
1905,18.2,19.2,20.1,20.5,21.9,22.3,21.7,22.2,21.7,21.6,21.2,20.3
1906,19.3,19.3,19.7,20.1,20.9,21.7,21.7,21.8,21.7,21.3,20.6,19.1
1907,18.8,18.7,19.9,20.3,21.5,22,21.8,22,21.6,21.4,21.1,20
1908,18.6,18.5,19.9,21.2,21.3,21.9,21.8,22.1,21.6,20.9,20.9,20.1
1909,18.8,18.9,19.8,20.4,21.1,22,21.7,21.8,21.5,21.2,20.3,19.1
1910,18,18.5,19.2,20,20.9,21.8,21.6,21.9,21.6,21.2,20.2,18.8
1911,18.9,19,19.4,20.2,20.6,21.9,21.6,21.9,21.5,21.6,21.6,20.2
1912,19.3,18.6,20.6,21,21.5,21.9,21.8,22,21.8,21.5,20.8,20.5
1913,19.4,19.6,20.5,20.1,21,21.3,21.6,21.7,21.5,21.4,20.4,19.5
1914,18.2,19,18.8,20.6,21,21.8,21.6,22.1,21.6,21.4,20.5,20.3
1915,18.9,18.6,18.6,19.7,22.3,22.9,22.3,23.2,22.5,22.6,21.5,19.9
1916,19.6,18.9,19.2,20.5,21.9,22.7,21.6,22.1,22,21.5,20.8,19.6
1917,18.9,18.2,20.1,20.3,21.2,21.8,21.7,22.2,21.9,21.6,19.9,18.9
1918,17.9,19.3,19.7,20.6,20.6,21.8,21.7,22.5,21.7,21.9,21,20.2
1919,18.5,18.8,19.9,20.2,21.1,21.9,21.6,22.3,21.6,21.6,20.5,19.3
1920,18.3,18.1,19.5,20.7,21.5,22.4,21.4,21.9,21.6,21,20.9,20
1921,18.3,19,19.7,20.8,20.9,22.2,21.6,22,22.1,21.1,21,20
1922,18.3,18.5,19.7,20.6,20.8,21.8,21,21.9,21.7,21.4,20.8,20.1
1923,18.3,18.5,20,20.8,21.1,22,21.4,21.8,22.1,21.4,20.5,20.3
1924,19.5,18.8,19.9,21.8,22.1,21.9,21.8,22.9,21.8,21.6,20.8,20.5
1925,19.4,19.4,19.9,20.7,21.6,22.3,21.5,22.5,22.2,22.1,21.3,20.5
1926,18.8,19.3,20.3,22.1,21.8,22.3,21.7,22.4,22,22,21.3,20.3
1927,17.9,19.4,19.6,20.6,21.2,22.3,21.6,22.2,21.3,21.1,20.6,19.3
1928,18.2,19.3,19.7,20.5,20.6,21.9,21.7,21.9,21.7,21.2,20.6,19.3
1929,19.2,19.8,20.5,20.8,21.6,21.7,21.1,21.8,21.5,20.8,21.2,19.8
1930,19.5,18.9,19.8,21,21.2,21.6,21.7,22.2,21.9,20.8,20,19.7
1931,18.2,18.2,19,20.2,21.1,22,22,22.4,21.9,21.5,20.7,20.4
1932,19,19.7,19.5,20.5,22.1,21.7,21.5,22.1,21.8,20.2,19.7,19.5
1933,19.3,19.7,20.3,21.3,22.4,22.4,22.7,22.7,22.1,22.3,21,20.6
1934,19.3,18.6,19.5,21.2,22.2,22.1,22.2,22.8,22.6,22.4,21,20.2
1935,19,19,20.3,21.3,22.4,22.9,22,22.3,22.3,21.9,21,19.3
1936,19.4,19,19.6,20.9,21.8,22.1,22.3,22.8,22.3,22.7,21.8,20.4
1937,20.1,19.6,20.5,21.1,21.4,22.1,21.6,22.3,22,21.7,20.9,20
1938,19.4,19.7,19.2,19.8,21.3,22.1,21.3,21.9,21.7,21.6,20.8,19.2
1939,19.2,19.6,19,19.3,20.9,21.9,21.8,22.7,21.8,21.9,20.8,20.3
1940,18.2,18.9,20,21.1,21.6,22.7,22.8,23.1,22,21.4,21,20
1941,19.4,16.5,19.5,20.9,22,23,22.1,23,21.9,22.1,21.3,20.8
1942,19.7,17.3,20.8,21.1,21.8,22.3,22.3,22.8,22.1,21.9,21.5,20
1943,19,18.5,19.7,20.4,20.9,21.6,21.2,22,22.3,21.1,20.9,19.7
1944,19.1,18.8,19.5,20.4,21.1,21.7,21.5,21.9,21,21,20,19.3
1945,18.1,18.7,19.1,20,20.7,22.4,21.6,21.4,20.8,20.5,20.2,19.3
1946,18.5,18.3,19.2,18.4,21.1,22.2,21.4,21.9,21.5,21.8,20.6,19.8
1947,19.6,18.8,20.2,20.6,21.1,22.2,21.5,21.7,21.1,21.1,21.7,19.5
1948,19.3,19.5,20.2,20.3,21.5,21.9,21.7,22.4,22,21.3,21.4,19.9
1949,17.7,18.6,19.5,20.5,20.7,21.4,21.1,21.9,21.6,21.3,20.7,19.2
1950,18.4,17.8,19.3,19.7,20.5,21.5,21.3,21.5,21.3,20.5,20.3,19.3
1951,16.9,17.7,18.4,19.6,21,21.7,21.1,22.3,21.6,21.2,21.4,20.4
1952,18.7,18.1,19.4,20.9,22.1,22.9,21.3,22.3,21.2,21.3,21.3,18.1
1953,18.2,19.3,18.6,20.1,20.6,21.4,21,21.5,21.1,20.9,20.7,19.8
1954,18.6,17.1,18.8,19.2,20.6,21.6,21.4,21.7,21.1,21.2,20.6,19.3
1955,17.8,18,18.2,18.8,19.9,19.7,20.4,21.2,21,20.1,20.3,19.3
1956,16.9,17.3,18.6,20.2,20.9,21.1,20.9,20.3,21,20.1,19.8,18.5
1957,18.4,20,19.3,19.5,20.7,21.5,20.9,21.9,21.3,20.1,21,19.7
1958,18.7,18.6,19.9,20.5,22.1,21.8,22,21.8,21.9,20.7,20.2,19
1959,17.8,18.2,19.6,20.2,20.9,22,21.8,22,22.1,20.8,19.7,19.2
1960,18.9,18.7,20.7,21.5,22.2,21.4,21.1,22.1,21.1,20.7,20.6,18.8
1961,18.7,19.5,20.3,20.9,22.1,22.6,21.6,22.5,21.7,21,19.9,19.7
1962,18.5,18.3,19.2,20.4,21.4,22.4,22.5,22.2,22.1,21.4,20.7,19.8
1963,18.3,18.8,19.3,19.6,21.6,21.9,21.8,21.7,22.1,21.6,20.7,19.1
1964,18.4,19.4,20.1,19.9,21.4,21.9,21.5,21.5,21.6,20.3,19.7,18.4
1965,17.1,17.7,17.2,19.3,20.8,21.3,21.6,21.7,21.4,20.5,20,19.3
1966,18.3,18.9,19.1,20.1,21.1,21.5,20.6,22.4,21.6,22,20.5,19.6
1967,18.7,18.5,19,19.9,20.7,22.2,22,22.8,21.4,21.6,21.3,19.7
1968,18.9,18.8,19.6,19.8,21.8,22.9,22.2,22.5,21.9,21.9,20.7,19.5
1969,19.5,18.7,21.4,21.9,22.1,22.6,22.3,22.8,22,21,20.7,19.5
1970,18.8,19.3,20.2,20.9,20.9,21.6,21.2,21.4,21,21,20.2,19.8
1971,18.4,19.1,19.4,20,20.9,21.8,21.6,21.3,21,20.7,20.2,19.2
1972,18.9,18.8,18.8,20.6,21.7,21.3,21.9,22.5,21.8,21.3,21.5,20.6
1973,19.4,18.9,20.8,21.3,22,21.8,21.9,22.3,21.9,21.7,20.4,18.4
1974,18.3,18.4,19,20,21,21.7,21.1,22,21.2,20.8,20.6,19.4
1975,19,18.5,19.9,20.3,21.1,22.1,21.3,21.8,21.1,20.6,21.5,19.5
1976,18.6,18.5,19.1,20,21.5,22.3,22.2,22.8,22.2,21.7,22,20.8
1977,19.4,19.7,20.8,21.2,21.7,23.1,22.5,22.8,22.9,22.6,22.4,20.9
1978,19.7,19.3,21,21.5,22.4,22.6,22.6,22.9,22.9,22.4,21.4,20.5
1979,20,20.1,20.8,21.7,21.5,22,21.9,22.9,21.2,22,21.6,20.6
1980,20.1,19.6,21,21.3,22.6,23,22.2,22.2,22.7,22.6,22.3,20.2
1981,19.4,19.7,20.3,22.1,21.9,22,22.1,22.7,21.8,21.9,21.4,21.8
1982,19.9,19.4,20.3,21.1,21,22.7,22.1,22.5,24.3,21.7,20.6,19.9
1983,19.7,20.4,21,21.1,22,21.7,22.8,22.7,22.4,21.5,21.8,20.2
1984,18.9,20.4,21.3,22.4,21.3,22,21.3,21.9,21.3,21,20.6,19.6
1985,18.2,18.9,19.8,20,21.5,22.3,21.8,22,21.9,21.8,21.3,19.8
1986,18.7,19.1,20.2,20.5,21.1,22.1,22.1,23,21,21.5,20.9,20.1
1987,19.4,19.7,20.6,21.3,21.6,23.2,22.8,23.3,23.1,22.3,22.2,21.3
1988,20.3,20.1,20.5,21.2,22.5,23.1,22.2,22.2,21.6,22,21.1,20.8
1989,18.8,19,19.1,20.7,20.9,21.8,21.6,22.4,22.1,21.5,21.1,20.4
1990,20.2,20.4,21.2,21.9,22,23.3,22.8,23,22.3,22.9,22.5,21.3
1991,19.4,19,19.9,20.6,21.7,22.6,22.5,22.7,22.4,22.2,22,20.5
1992,20.1,20.4,21.2,22.3,22.2,23.5,23.1,23.4,22.7,22.7,22.5,21.3
1993,20,18.5,19.9,21.3,22.2,23.7,22.3,23,21.8,22.8,22.4,20.8
1994,20.4,20.4,21.2,22.2,22.6,23.6,23.2,23.4,23.4,22.9,22.4,20.7
1995,19.6,20.1,20.5,22,22.8,23.2,22.5,22.4,22.8,21.4,22.1,20.7
1996,19.6,19.4,20.1,21.1,21.5,22.4,21.7,22.1,21.5,22.5,21.3,19.8
1997,19.4,20.2,20.4,21.5,22.5,23.3,22.9,23.8,23.4,22.7,23.1,21.8
1998,21,20.5,21.3,22.4,23.2,24.1,23.4,24.1,23.5,22.9,22.6,21.2
1999,20.2,19.1,21,21.6,22.7,22.7,22.4,23.1,23,22.1,21.4,20.3
2000,19.4,19.7,20,20,21.4,22.6,22.7,23.3,22.5,22.6,22,20.5
2001,19.6,20.1,21,21.3,21.7,23.2,22.6,23.9,23.2,22.7,21.4,21.2
2002,20.5,20.3,21,21.2,21.7,22.7,22.8,23.5,22.3,22.4,22.6,21.3
2003,20.1,20.7,21.4,22,22.8,23.1,22.5,23.1,23.2,22.7,22.3,20.7
2004,19.8,20.3,22.1,21.4,22.1,23.6,22.3,23.3,22.4,22.5,21.9,20.5
2005,19.2,16.8,21.2,20.6,22.3,22.5,22.4,23,23.5,20.9,22.3,19.9
2006,19.1,16.8,20.6,21.6,23.6,24.3,24.1,24.4,23.3,22.6,22.3,21.2
2007,19.6,21.4,21.8,22.9,23.4,24.3,23.2,21.6,22.2,20.6,19.5,19.8
2008,19,17.7,19.3,20.1,22,22.1,22.3,22,21.8,21.4,20.7,19.5
2009,18.7,18.6,19.2,21.5,21.8,21.6,22,22.2,22.2,21.7,21.3,21.2
