1901,19.6,21,22.2,21.6,21.6,21.6,21.6,21.4,21.8,21.6,21.7,20.9
1902,20.1,20.5,21,20.7,21.8,22.3,21.9,21.6,21,21.3,21.2,20.2
1903,19.8,20.5,21.8,21.6,22.2,21.6,21.4,20.9,21.5,21.6,21.5,20.3
1904,19,20.1,20.6,20.7,21.5,21.5,21,21,21.2,21.2,21.3,20.1
1905,20,20.4,21.6,21.8,22.1,21.3,21.3,21.3,21.1,21.6,21.6,20.9
1906,20,21,22.2,22,21.9,21.6,21.3,21.2,21.2,21.2,21.7,19.9
1907,19.7,20.4,21.7,21.3,21.6,21.7,21.4,21.4,21.3,21.3,21.4,20.2
1908,19.7,20.2,21.1,21.6,21.4,21.3,21.1,20.8,20.8,21.2,21.4,20.6
1909,19.6,20.5,21.5,21.1,21.4,21.4,21.2,21.3,21.5,21.6,21.4,20.2
1910,18.8,20.5,21.8,22.1,22,22.4,21.4,21,21.5,21.5,21.4,20.7
1911,20.3,20.6,21.5,21.8,21.4,21.2,21.2,20.7,21.1,21.2,21.4,20.2
1912,19.8,20.4,21.9,21.7,22.7,21.9,21.6,21.1,21.1,21.7,21.6,20.7
1913,20.1,19.6,20.6,21.5,21.7,22.7,21.8,21.1,21.2,21.2,21.2,19.4
1914,19.3,20.2,21,21.3,21.8,21.7,21.3,20.6,21.2,21.9,21.5,20.5
1915,19.5,20.7,21.9,22.3,21.7,22.2,21.5,21.5,21.6,21.9,21.7,20.4
1916,20.3,21,21.9,21.3,22.1,21.8,20.9,21.3,21.2,21.4,21.4,19.9
1917,19.8,19.3,21.2,21.6,21.7,21.7,21.9,21.1,21,21.5,20.9,20
1918,19.3,20.2,21.3,20.7,21.4,20.9,20.6,20.6,21.9,21.4,21.5,19.3
1919,19.5,20.4,20.3,20,20.3,20.9,20.4,20.7,20.5,21.1,21.5,20.4
1920,19.6,20.4,20.7,20.6,21.3,21.3,20.8,20.7,20.8,20.9,20.8,20.1
1921,18.9,20.1,20.9,20.4,20.1,20.1,21.3,21.2,21.3,21.8,21,20
1922,19.8,20.4,21.4,20.4,21.4,21.6,21.3,20.8,20.9,20.9,21,19.7
1923,19.9,20.1,21.2,20.9,21.5,21.7,21.1,21.1,21.1,21.2,21.3,20.9
1924,19.6,19,21.3,21.6,21.6,21.1,20.8,20.4,20,20.5,20,19.2
1925,18.3,19.7,20.7,21.1,21.5,21.3,20.8,21,20.5,20.7,20.7,20
1926,18.9,19.9,21.8,21.9,22.4,21.8,21.4,21.5,21.4,21.4,20.8,20
1927,18.9,20,20.9,20.8,21.3,21.3,21.2,21,21,21.1,20.8,20.5
1928,18.9,19.2,20.9,20.1,20.9,21.2,20.9,20.2,20.7,20.3,20.7,19.6
1929,18.6,18.6,20.5,21,20.9,20.1,20.8,20.5,20.7,20.6,20.6,19.3
1930,18.8,18.5,19.3,19.2,20.3,20.9,20.4,20.3,20.2,20.3,20.7,19.6
1931,18.7,19.6,20.5,20.8,20.6,20.4,20.1,20.1,19.8,20.4,20,19.5
1932,18.3,19.4,20.6,19.7,20.9,21.1,20.5,20.7,20.6,21.1,20.8,19.4
1933,19.4,18.8,21.3,21.6,22.3,20.9,20.3,21.6,21.5,19.6,21.2,17.6
1934,17.1,17.6,20.3,21.8,20.2,21.4,21.4,21.1,21.4,20.7,20.9,19.4
1935,18.6,18.6,19.5,19.6,21.1,20.9,20.6,20.7,20.6,20.7,20.3,19.2
1936,18.8,18.9,20.8,19.6,20.7,20.5,20.1,20.7,20.9,21.1,20.8,20
1937,19.5,20.5,20.9,21,21.2,21.6,20.8,20.6,20.6,20.7,20.7,19.9
1938,19,19.1,20.6,20.6,20.9,21,20.8,20,20.5,21.3,20.9,20.1
1939,19.3,18.9,20.6,19.7,21.1,21.7,22,21.6,20.9,20.4,20.3,19.3
1940,18.7,18.9,20.5,21.6,22.4,22.1,21.6,21.5,21.7,21.1,20.7,19.4
1941,18.6,19.5,20.5,21.4,21.9,21.8,22,21.8,21.5,22.1,21.4,20
1942,19.4,19.2,20.6,21.2,21.4,22.3,21.5,21.3,21.9,21.7,21.4,19.6
1943,19.3,20,20.8,21.3,21.6,21.8,21.5,21.3,21,21.2,21.4,19.5
1944,19.1,19.8,20.8,21.6,22.2,22.6,22.2,21.5,21.6,21.4,21.3,20.2
1945,20.1,20.7,21.3,22.1,22.3,22.2,21.5,21.2,21.4,21.2,21.3,19.9
1946,19.1,19.4,20.8,21.6,21.6,22.1,21.3,21.3,21.1,20.7,21.3,19.9
1947,18.7,20.1,20,21.3,21.2,21.5,21.5,21,21.4,21.1,21,19
1948,18.1,19.2,20.4,20.6,20.7,20.8,21.2,20.6,20.6,20.7,20.5,19.9
1949,18.6,19.5,20.5,20.9,21.2,21.5,21.3,21.3,20.7,20,20.2,18.5
1950,18,19.6,20.8,22.3,21.5,22.2,21,21.3,20.8,20.4,20.3,19.8
1951,18.9,19.8,20.2,20.8,20.9,21.4,21.2,21.1,21,20.6,20.7,19.6
1952,18.8,19.9,21,21.4,21.1,21.1,21.2,20.9,21.2,21.1,20.3,19.3
1953,19.5,19.8,20.8,21.9,21.6,20.7,21,21.2,21.4,21,21.2,20
1954,19,19.5,20.3,20.8,20.7,20.8,20.5,20.3,21.3,20.5,20.3,19.5
1955,19.5,20.6,20.2,21.6,21.2,21.2,20.9,21.3,21.2,20.9,20.9,18.5
1956,18.4,19.6,20.2,22,20.1,20.8,20.2,20.6,21.7,20.6,20.5,18.7
1957,17.8,19.4,20.3,20.8,21.2,21.1,20.7,21.2,20.9,20.4,20.8,19.8
1958,19.8,20.8,20.9,21.3,20.7,21,20.7,20.6,20.6,20.9,19.5,18.9
1959,18.2,20,20.3,21.4,20.6,21.1,20.9,20.9,20.9,20.5,20.4,19
1960,18.2,20.4,20.8,20.9,21.1,21,20.9,21.5,20.9,20.6,22,19.7
1961,18.1,18.4,21,21.1,21.7,20.8,20.1,20.8,20.9,20.9,20.7,19.3
1962,18.9,19.1,20.4,21.2,21.1,20.8,21.4,20.7,20.5,20.5,20.6,19.5
1963,18.6,19.7,20.8,21.6,21.4,21.2,21.2,21.2,21.2,21,21,19.4
1964,18.6,20.2,20.3,20.9,21.3,21.2,20.9,20,20,20.3,20.1,18.5
1965,17.3,18.6,20.2,21.4,20.7,20.8,20.9,21.1,20.4,21,20.7,19.3
1966,18,20,20.7,22.1,21.6,21,21.5,21.2,20.6,20.6,20,19.4
1967,18.7,19.8,19.8,21.1,20.9,20.9,20.5,20.6,20.6,20.9,20.7,19.4
1968,18.5,19.2,19.8,20.7,20.8,21.3,21.1,21.6,20.9,21.3,20.3,19.4
1969,19.1,19.9,20.9,22.2,21.9,21.4,21,21,20.7,20.8,20.3,19.5
1970,19.4,19.4,21,22,21.4,21.7,21.3,21.1,20.7,20.4,20.6,19.5
1971,18.8,19.1,19.5,19.6,21.2,21.1,20.8,20.8,20.2,20.3,20.2,18.1
1972,18.8,19,20,21.6,21.8,20.9,21.5,21.9,21.2,20.6,21,19.8
1973,18.6,19.6,21.2,21.1,21.6,21.5,21.7,21.6,21.3,20.2,21.1,19
1974,18.3,18.5,20.4,20.9,21,21.6,20.5,21.3,20.9,21.2,19.6,18.8
1975,18.5,19.7,20.2,21,20.9,21.2,20.8,20.8,20.4,20.2,20.5,18.8
1976,18.4,18.7,20.6,20.2,20.9,20.6,20.8,21,21.1,20.6,20.5,19.4
1977,18.9,19.5,20.8,21.1,21.6,21.3,21.4,21.1,21.1,21.4,21.1,20.4
1978,19.9,20.1,20,21.3,21.2,20.9,20.9,21,21,20.9,20.7,19.5
1979,19.5,19.8,21,21.4,21.3,21.3,21.1,21.4,21.2,21.4,21.2,19.4
1980,19.3,19.3,20.5,22.2,21.7,21.7,21.5,21.6,21.6,21.5,21.4,19.5
1981,17.2,18.5,21.2,21.2,21,21.7,21.2,21.6,21.4,21.2,21.9,19.1
1982,18.4,19.4,20.8,21.3,21.4,21.6,21.1,21,21.3,20.8,20.8,19.2
1983,18,19.7,21.7,21.8,22.3,21.2,21.8,21.3,21.3,21.2,21.8,19.7
1984,18.7,19.6,21.1,21.4,21.2,21.3,21.1,21.4,21.2,20.9,20.8,18.8
1985,18.4,19,20.4,20.2,21.2,20.6,20.4,20.6,20.9,20.5,20.9,19.1
1986,17.8,18.9,19.6,21,21.1,22,20.4,20.7,20.7,20.7,20.3,18.9
1987,18.2,18.5,20.1,21,21.4,22.3,22.3,21.8,21.4,21.5,21.3,19.6
1988,19.4,19.9,20.5,21.4,21.7,21.6,20.5,21,20.7,20.9,21,19.1
1989,18.5,19.7,19.8,19.9,21.3,21.4,21.6,20.6,21.3,20.7,21.5,18.8
1990,19.4,19.1,20.9,21.6,21.4,20.1,21.4,21.5,21.7,21.1,21,19.8
1991,17.3,20,20.9,21.2,20.9,22.1,21.2,20.8,21,21,20.9,20.5
1992,18.8,19.4,20.5,21.2,20.2,21.4,20.9,21.2,22.1,21.1,21,19.3
1993,18.9,19.6,20.7,20.2,21.4,21.4,21.3,21.6,21.4,21.2,21.4,20.1
1994,19.1,19.6,20.5,20.8,21,21.5,20.6,21.3,20.5,21.5,20.5,19.3
1995,18,18.4,21,21.5,21.8,22.1,21.6,21.6,21.5,21.2,21.2,20.6
1996,19,19.5,19.9,20.3,21.9,21.5,21.4,21.2,21.1,21.2,21.6,20.7
1997,19.1,19.2,21,20.3,21.7,21.3,21.2,21.5,21.5,21.9,21.4,19.6
1998,19.4,20.8,21.9,22.1,21.7,21.8,21.6,21.6,21.3,21.5,21.8,20.1
1999,19.8,19.8,20.7,20.9,21.7,21.5,21.7,21.9,21.3,21,21.6,20.3
2000,19.7,19.6,20.6,22.2,21.7,21.4,21.4,21.8,21.1,21,21.5,19.6
2001,18.7,19,20.6,21.5,20.8,21.6,21.2,21.7,21.1,21.5,22,20.4
2002,19.4,20.2,19.2,21.3,21.8,21.6,21.5,21.8,21.5,21.3,20.7,20
2003,19,19.4,21.5,21.4,22.4,21.5,21.2,21.3,21.2,21.7,20.9,19.3
2004,19.2,19.6,21.2,22,22.1,20.8,20.9,21.7,21.4,21.5,21.5,20.7
2005,20.4,20.2,21.5,21,22,22.6,21.4,21.9,21.9,21.4,20.9,20.2
2006,20.1,20.2,21.1,21.2,21.8,21.8,21.8,21.7,21.7,21.4,21.3,19.6
2007,19.6,20.1,21.5,21.5,22.2,21.7,21.3,21.3,20.9,21,20.8,20
2008,18.4,20.1,20.2,21.4,22,21.3,21.8,21.2,21.3,21.4,20.9,19.5
2009,18.3,19.9,21.4,21.2,21.6,21.8,21.4,21.4,21.4,20.9,21.7,18.9
