1901,20.4,20.7,20.7,19.7,19.1,18.5,18.4,18.9,19,19.1,19.3,19.8
1902,20.4,20.7,20.7,19.7,19.1,18.5,18.4,18.9,19,19.1,19.3,19.8
1903,20.4,20.7,20.7,19.7,19.1,18.5,18.4,18.9,19,19.1,19.3,19.8
1904,20.4,20.7,20.7,19.7,19.1,18.5,18.4,18.9,19,19.1,19.3,19.8
1905,20.4,20.7,20.7,19.7,19.1,18.5,18.4,18.9,19,19.1,19.3,19.8
1906,20.4,20.7,20.7,19.7,19.1,18.5,18.4,18.9,19,19.1,19.3,19.8
1907,20.4,20.7,20.7,19.7,19.1,18.5,18.4,18.9,19,19.1,19.3,19.8
1908,20.4,20.7,20.7,19.7,19.1,18.5,18.4,18.9,19,19.1,19.3,19.8
1909,20.4,20.7,20.7,19.7,19.1,18.5,18.4,18.9,19,19.1,19.3,19.8
1910,20.4,20.7,20.7,19.7,19.1,18.5,18.4,18.9,19,19.1,19.3,19.8
1911,20.4,20.7,20.7,19.7,19.1,18.5,18.4,18.9,19,19.1,19.3,19.8
1912,20.4,20.7,20.7,19.7,19.1,18.5,18.4,18.9,19,19.1,19.3,19.8
1913,20.4,20.7,20.7,19.7,19.1,18.5,18.4,18.9,19,19.1,19.3,19.8
1914,20.4,20.7,20.7,19.7,19.1,18.5,18.4,18.9,19,19.1,19.3,19.8
1915,20.4,20.7,20.7,19.7,20.1,19.3,19.4,20.2,19.7,20.4,19.9,20.5
1916,20.7,20.7,20.6,20.5,19.8,19,18.9,18.8,19.5,19.1,19.2,19.5
1917,19.8,19.6,20.4,19.7,19.1,18,18.5,18.7,19,19.1,19.2,19.8
1918,20.2,20.3,19.6,19.2,18,17.7,18.4,19.3,19.1,19.5,19.1,19.8
1919,20.4,20.7,20.7,19.7,19.1,18.5,18.4,18.9,19,19.1,19.3,19.8
1920,20.4,20.7,20.7,19.7,19.1,18.5,18.4,18.9,19,19.1,19.3,19.8
1921,20.5,20.4,19.7,19,18.3,18,18.4,18.4,18.9,18.3,18.9,19.6
1922,20.2,20.2,19.9,19.5,18.6,17.6,17.8,18.7,18.8,18.6,18.6,19.2
1923,19.6,20.1,20.3,19.4,18.6,18.4,17.8,18.6,19.2,18.7,19.4,19.6
1924,20.9,20.8,21.6,20.1,19.3,17.9,17.8,19.1,18.2,18.5,18.8,19.3
1925,19.5,19.7,19.5,19.3,19,18.2,18,18.5,18.7,19.3,19.1,20
1926,20.8,21.3,21.3,20.8,19.8,19,18.4,18.8,18.7,19.1,19.3,19.4
1927,20,20.1,20.4,19.1,18.6,18,17.4,18.9,18.7,18.9,19.6,19.7
1928,20.2,20.8,20.4,19.9,19,18.2,18.2,18.6,18.9,19.1,19.1,19.5
1929,20.4,20.8,20.6,19.5,18.7,18.2,17.9,18.8,19.1,19.2,19.4,19.8
1930,20.5,20.5,21.3,19.7,18.8,18.3,18.3,18.7,19,18.7,19.6,20.3
1931,21,21,21.4,20.5,19.5,18.5,17.9,18.9,18.7,19.4,19.4,19.6
1932,20.1,20.4,20.3,20.3,18.4,18.1,18.1,18.6,18.8,18.4,19.3,19.6
1933,20.1,20.4,20.7,19.7,19,18.2,18.5,18.9,19.8,18.6,18.7,19.3
1934,20.2,20.1,20.2,20.4,19.1,18.5,18.2,19.3,20,18.8,19.3,20
1935,20.4,20.3,20.7,20.3,18.7,18.4,18.6,18.7,19.4,19.1,19.2,20
1936,20.8,21.7,21.4,20.8,19.5,18.7,18.5,19.7,19.9,19.3,19.9,20.1
1937,20.5,20.8,21.4,20.7,19.5,18.5,18.5,19.1,19.2,19.6,19.8,20.7
1938,20.5,20.7,19.9,19.2,18.7,18.3,18.4,18.2,19.3,19.2,19.3,19.8
1939,20.5,19.9,20.3,19.6,19.6,18.2,18.8,19.3,19.3,19.3,19.5,20.7
1940,17.8,19.3,19.4,20.4,20.1,19.1,19.3,19.6,19.9,19.8,19.8,17.5
1941,17.9,18.2,20.1,19,20.1,18.7,18.6,20,20.5,20.4,21.1,21.5
1942,20.2,20.2,19.6,18.3,18.9,18.6,18.9,19.2,20.2,19.2,18.3,20
1943,20.3,20,19.5,19.2,18.4,17.8,18.9,18.3,19.8,19.2,19.7,18.7
1944,19.1,19.2,19.3,18.2,19,18,18.5,18.9,19.2,19.4,18.6,19.3
1945,18.3,18.4,19.5,16.4,16.9,17,17,17.9,18.2,18.5,18.7,20.1
1946,20,19.2,19.7,17.8,18,17.6,17,17.7,18.6,19.1,19.5,18.9
1947,21.3,21.5,22.2,20.4,19.2,17.8,17.4,18.2,19,18.8,20.1,21
1948,21,20.6,20.9,18.7,18.7,17.6,17.9,18.3,19.4,19.7,20.1,21
1949,20.8,20.5,20.7,20,20.3,19.2,18.8,19.3,19.5,19.5,20.3,21
1950,20.3,20.1,20.6,19.6,18.5,17.6,17.6,18.4,19,18.6,19.8,20.4
1951,19.3,18.2,19.9,20.2,19.2,18.6,18.1,19.5,19.8,19.9,19.6,20.4
1952,20.6,21.5,22.1,20.1,19.7,19.1,19.7,20,21,20.5,20,20.7
1953,21,21.6,21.6,22,20.2,19.9,19.4,19.7,20.9,20.6,21.4,21.5
1954,20.3,21.2,22,18.9,19.5,18,17.3,17.7,19.7,19.6,19.9,19.8
1955,21.7,21.5,20.3,20.3,20.5,19.8,18.2,20.2,19.7,19.8,21.1,21
1956,18,19.5,19.6,20.1,19.3,19.4,18.7,19.5,20.1,19.8,20.6,20.4
1957,21.3,22.2,22.6,21.3,20.5,19.4,19.8,20.1,20.9,20.3,21,21.6
1958,23.1,23.8,25.7,21.1,20.6,19.7,19.1,20,21.2,21.2,21.3,22
1959,22.5,23.1,24,22.2,20.4,20.5,19.4,19.7,20.4,20.5,20.7,22.4
1960,23.2,23.2,23.1,22,20.3,21.1,20.2,20.2,20,21,21.3,20.4
1961,21.1,21.9,22.6,21.6,21.6,19.3,19.2,20.1,20.2,20.4,19.5,21.3
1962,21.1,22,21.1,20.7,19.4,19,19.1,19.4,20.2,20.2,19.9,20.7
1963,20.6,20.6,21.4,19.9,18.6,19.1,19,19.9,20.3,20.4,19.7,21.8
1964,21.8,22.4,22,19.3,19.8,17.3,17.7,18.4,18.7,19.2,19.8,18.4
1965,18.6,20.4,21.9,19.3,18.3,19.2,19,19,19.3,19.7,19.2,20.7
1966,22.2,21.6,21.4,20.8,19.8,18.6,18.4,19.1,19.1,18.9,18.4,18.7
1967,19.4,19.9,19.5,18.4,18.7,17.5,17.5,19.1,19,19.8,19.3,20.3
1968,20,20,20.1,18.2,18.3,17.2,18.5,18.8,18.7,19.3,19.9,20.3
1969,20.1,20.6,21.4,20.5,20.4,20.3,19.5,19.3,19.7,18.6,19.7,20.2
1970,21.2,20.8,21.6,20.7,19.8,19.2,18.2,18.4,18.1,18.9,18.5,20
1971,19.6,18.4,19,19.1,17.9,17.8,18.2,18.5,17.8,18.5,19,19
1972,18.9,20,20,19.6,18.7,18.3,18.5,18.4,20.3,19.9,19.9,20.1
1973,22,21.7,22,20.8,19.8,17.9,17.7,18.5,17.8,18.4,18.8,18
1974,18.4,20.3,18.4,18.2,18.3,18.7,18.2,18.5,18,18.5,18.7,19.6
1975,20.6,20.4,20.3,20,19,18.7,18,18.4,18.7,18.4,18.3,17.8
1976,19.6,18.2,18.4,18.6,18.6,17.4,17.8,18.8,19.4,18,18.9,19.8
1977,20.8,21.6,21.2,19.6,18.6,18,18.5,18.6,18.9,19.2,19.2,20.5
1978,20.6,21.8,20.5,18.8,19.6,17.8,18.7,18.1,18.9,19.5,20,19.9
1979,20.5,20.9,19.7,19.6,18.6,17.7,18.6,18.9,18.5,18.9,19,19.7
1980,21,20.9,22.2,21,19.5,19,18.6,19.3,19.4,19.5,19.5,20
1981,20.8,20.8,21.3,18.8,18.3,18.1,18.2,18.5,18.3,19,20,20.5
1982,20.3,19.9,20.1,18.4,18.6,18.9,18.4,19.5,19.9,19.3,19.7,19.8
1983,22.2,23,22.8,20.3,19.4,19.5,19.1,19.3,19.8,19.2,20.7,20
1984,19.5,20.6,20.6,20.5,18.5,18.4,17.7,18.2,17.8,19.1,19,19
1985,19.8,21.4,20.2,19.7,19,18.4,18.9,18.7,19.2,19,18.4,19.7
1986,20.7,19.9,20.2,19.3,19.3,18.3,18.6,19,18.8,18.3,18.7,20.5
1987,21.5,22.4,21.8,21.3,19.6,19.6,18.6,19,19.2,18.8,19.9,20.9
1988,21.1,21,21.4,20.3,20.2,18.4,18.1,18.1,18.1,18.8,18.6,18.8
1989,19.4,19.8,18.7,19.2,18.2,18.1,17.5,18.6,17.9,19.4,18.2,18.4
1990,18.6,18.3,19.4,18.8,17.9,18.4,17.8,18.4,19.3,18.3,19.3,19
1991,20.4,21.5,20.9,20.5,20.1,19.4,18,18,19.4,19.7,19.8,19.9
1992,21.6,21.7,22.8,21.2,20.2,19.4,17.9,18.9,19.1,20.1,20,19.9
1993,20.6,21,21.6,21.1,19.2,19.2,18.6,19.8,19.2,20.2,20,21
1994,20.6,21.4,20.6,19.8,19.5,19.3,18.3,19,19.6,18.6,19.8,20.4
1995,21.6,22.2,21.4,20.7,20.1,19.5,19,18.6,20.1,19.5,20.4,20.7
1996,20.8,20.4,20.9,19.8,19.2,18.7,18,18.3,19.7,19,17.2,19.4
1997,19.4,19.7,20.2,20,19.5,18.3,19.5,20,18.3,18.1,19.5,19
1998,22.1,22.1,20.2,20.8,19.5,18.1,17.2,18.6,19.6,19.3,18.3,17.3
1999,18.3,18.7,20.2,20.2,19.7,19,18.8,19.1,18.6,19.5,20.2,19.8
2000,19.4,19.7,19.9,20.2,19.4,18.8,18.7,19.3,18.9,20,19.6,21.1
2001,21.3,21.1,21.7,20.5,20.3,19,19.1,19.6,19.7,20.5,20.4,21.5
2002,21.4,21.5,21,19.6,20.1,18.7,19.3,19.4,20,18.9,18.1,19.4
2003,19.9,23.1,21.5,20.7,21.4,17,16.9,19,19,19.4,17,19.6
2004,19.9,19.7,21.1,19.4,19.6,19.4,18.9,19.2,18.3,20.3,17.6,17
2005,17.8,20.3,22,20.8,19.9,19.1,20,20.3,20.3,17.6,17.4,16.8
2006,17.8,21.3,18.5,18.4,17.6,18.5,18.1,19.5,20.6,19.1,19.4,18.1
2007,18.6,19.5,20.7,19.7,19.5,18.5,19,18.6,19.2,17,19.8,16.6
2008,20.3,20.7,21.1,20.4,19.2,18.7,18.5,18.5,19.5,18.7,18.3,17.8
2009,20,19.8,18.5,19.7,19.3,19.1,18.3,19.7,19.9,20.5,20.4,21.8
