1901,19.7,21.6,22.6,23.5,23.5,24,23.9,23.8,23.1,22.8,21.7,19.7
1902,18.4,21.3,22.5,23.1,24,24.8,24.1,23.8,22.9,22.9,21.6,20.8
1903,19.9,20.4,23.6,24.2,24.5,23.2,23.7,23.2,22.6,22.3,20.2,16.6
1904,16.8,19.3,22.1,22.4,23.8,24,23.7,24,23.5,23.1,20.7,18.5
1905,20.4,22.2,23,24.2,23.9,24,24,24.4,23.6,23.3,22,22.6
1906,21.2,22.6,23.2,24.9,25.2,24.6,24.3,24.4,23.9,22.7,20.7,19.8
1907,19,21.2,21.7,23.1,23.4,23.7,23.8,23.4,23.4,22.7,21.6,17.7
1908,19,20.7,22.1,23.3,23.7,23.9,23.8,23.5,23.3,22.9,20.2,19.3
1909,19.2,21.1,22.3,23.1,23.5,24,23.5,23.8,23.4,23.1,20.5,18.4
1910,19.8,20,21.6,23,23.7,23.6,23.9,23.8,22.7,22.6,21.2,18
1911,18.5,20.3,22.2,23.6,24.1,24,23.9,24.3,23.7,23.1,23,20.9
1912,19.7,21.2,23.7,23.6,25.4,24.7,23.5,23.2,23.1,22.4,20,19.2
1913,18.4,21.2,22.7,24,23,23.5,22.9,23.3,23.1,22.5,20.6,19.2
1914,18.1,21.3,22.6,24,25.1,23.8,23.3,23.3,23,22.3,21.6,20.2
1915,19,22,22.8,23.5,23.8,24.1,23.6,23.9,22.8,22.3,20.3,17.1
1916,17.4,20.4,22.9,23.4,23.8,23.4,23.6,23.4,22.8,22,19.6,18
1917,18.8,20.5,21.2,23.8,24,23.1,23.3,22.9,22.5,21.6,20.3,18.2
1918,18.1,18.9,21.4,22.3,23.1,23.8,24.2,23.6,23.5,22.8,22.2,20.7
1919,19.7,21.4,23.5,23.5,24,23.4,23.4,23.4,23,22.5,20.9,19.7
1920,17.3,20.9,22.6,23.2,24.4,23.9,23.4,23.9,23.2,22.1,21.8,19.6
1921,18.1,20,22.3,22.8,23.1,23.6,22.7,23.3,22.4,22.2,20,19
1922,19.4,21.2,21.2,23.1,24.1,23.7,22.7,23.2,23.5,22.3,20.3,18.5
1923,18.2,19.5,21.7,22.2,22.8,23.3,22.5,22.6,22.6,22.1,21.4,19.8
1924,19.3,20.8,22.4,22.6,23.7,23.6,22.6,23.3,22.7,21.7,21.9,17.4
1925,19.1,19.7,22.2,21.9,23.8,23.6,23.4,23.5,23.1,22.1,21.2,17.9
1926,19.1,21,22.1,23.9,24.7,24.3,23.6,23.1,23.1,22.1,21.1,19.7
1927,18.8,20.8,22.9,22.2,22.9,23.4,23.1,23.2,22.9,22,21.4,19.4
1928,20.5,20.4,22.6,22.4,23.6,23.3,23.3,23.4,22.7,21.7,20.7,19.9
1929,19.6,20.4,20.9,22.4,23.9,23.3,22.8,23.2,22.9,22.1,20.9,20.5
1930,19.2,20.4,21.2,22.2,23.8,23.8,23.1,23.4,23.5,22.5,21.2,19.8
1931,20,20,23.5,23.9,24.3,24.1,23.7,23.5,22.9,21.5,20.4,19.1
1932,17.9,21,21.8,23.3,24.5,24.4,23.5,24.4,23.2,22.6,21.7,18.6
1933,19.2,21.6,22.2,23.4,24.5,24.4,23.5,24.4,23.5,22.7,20.2,19.3
1934,18.1,19.7,22,23.1,24.7,24.6,23.6,23.6,23.5,22.3,21.8,18.2
1935,20.3,21.7,23.3,23.6,24,24.2,23.5,24,23.3,23.3,22.3,20.2
1936,18.7,20.8,21.9,23.8,24.5,24.1,23.8,23.5,23.1,21.9,20.9,20.3
1937,19.5,21.1,23.9,23.1,23.2,23.4,23.1,23,22.6,21.7,21.6,18.7
1938,20,20.6,21,22.6,22.6,22.9,22.2,22.8,22.6,22.6,21.9,19.9
1939,19.3,20.1,21.8,22.8,23.8,23.8,24.3,23.8,23.1,22.6,22.6,17.2
1940,16.3,20.9,22.7,23.4,23.8,24.1,23.9,23.5,23.6,22.8,21.9,20.4
1941,20.7,21.8,22.5,23.6,24.7,24.3,24.1,24.2,23.3,23.1,22.5,20.3
1942,18.4,21.4,22,22.3,23.2,23.8,23.4,23,22.7,22.6,21.6,19.6
1943,17.2,19.5,21.7,21.9,23.5,23.2,23.3,23,23.1,22.7,21.2,18.7
1944,19.4,21,21.9,23,23.5,23.4,23.4,23.5,23.5,23,21.8,18.6
1945,19.1,21.2,21.9,22.5,22.9,23.2,23.9,23.2,22.8,22.1,21.9,19.6
1946,18.1,21.5,23.2,22.8,23.5,23.7,23.3,23.1,23,22,21.4,20.5
1947,20.7,21.4,23.2,23.3,23.6,23.5,23.4,23.1,22.9,22.5,20.9,18.8
1948,18.4,21.3,22.3,22.6,23.1,23.7,23.3,23.3,23.2,22.7,18,20
1949,18.2,19.8,21.9,23,23.4,23.7,23.6,22.8,23,22.4,20.8,19.2
1950,19.7,20.8,22.5,22.6,22.9,23.2,22.5,23.5,22.6,22.5,21,17.6
1951,18.9,20.4,22.2,23.4,23.2,23.3,23.5,23.7,23.1,22,21.2,18.7
1952,17.8,21.6,21.4,22.5,23.3,23.3,22.8,22.8,22.7,22.5,20.6,17.2
1953,19,20.4,22.2,23.3,23,22.7,22.6,22.7,22.4,22.4,20.8,18.9
1954,20.4,20.5,22.1,23,23.2,22.8,23,22.4,22.6,21.8,19.3,17.8
1955,17.5,19.6,21.2,21.6,23.4,23.7,23.3,22.8,22.8,22.6,20.8,17.8
1956,17.3,21.1,22.1,22.8,23.2,23.1,23.3,23.1,22.9,22.3,20.2,18.6
1957,17.8,20.2,21.5,22.4,23.7,23.7,23,22.7,22.8,22.3,20.7,19.5
1958,19.5,20.3,21.7,23.1,24.3,23.9,23.5,22.7,23.2,22.5,19.8,18.3
1959,18.3,20.8,21,23,23.2,23.8,22.9,23.5,23,22.4,21.2,20.7
1960,19.1,20,22.1,23.3,23.5,23.8,23.2,23.8,22.9,22.5,21.8,19.1
1961,18,21,22.2,22.9,23.9,23.5,23.5,23.8,23.4,22.1,20.3,19.9
1962,18.4,18.7,22,22.6,23.3,23.5,23.9,23,23.2,22.8,20.4,18.2
1963,16,19.5,21.2,22.1,23.7,23.3,23.2,23.1,23.5,22.4,22.3,19.4
1964,20.4,20.5,21.5,22.9,23.3,23.3,23.4,23,23.4,22.9,20.6,19
1965,16.9,21.6,21.6,22.4,23.3,24.3,23.6,23.2,23.1,23.1,21.7,21.6
1966,20.5,21.9,22.5,23.6,23.8,23.6,23.6,23,22.9,22.9,21.5,21.4
1967,19.5,20.6,21.8,22.2,23.7,24.2,23.5,24,23.1,22.2,21.3,18.1
1968,18.9,20.6,22.3,22.2,23.4,23.1,23.6,23.7,23.6,22.6,21.5,20.4
1969,21.5,21.1,22.9,23.4,23.2,24.1,23.4,22.9,23.2,23.2,21.1,19.3
1970,20.1,20.3,22.7,23.4,24,23.4,23.6,22.8,23.5,22.9,21.4,21.5
1971,17.5,19.6,21.5,22.7,23.2,23.4,23.8,22.8,23.2,22.5,19.9,20.7
1972,17.8,21.3,21.1,22.4,24.5,23.3,24.5,23.4,23,23.2,22.7,20.3
1973,19.7,21.1,23.4,23.8,23.9,23.8,24.1,23.4,23.2,22.6,21.2,19.2
1974,18.5,20.4,21.6,22.8,23.4,24.1,23.3,23.8,23.2,22.8,21.7,20.5
1975,20.7,21.6,22.9,23.8,23.7,23.9,23.1,23.7,23,23.1,21.1,18
1976,16.8,21.5,21.8,23,23.9,23.9,23.3,22.9,23.2,23,20.4,19.5
1977,20.2,20.3,22.4,23.6,23.9,23.8,23.5,23.6,23.3,22.8,21.4,19.5
1978,21.6,22,23.5,23.6,24.1,24.2,23.7,24,23.2,22.7,21.2,20.3
1979,21,21.8,23.4,23.8,24.7,24,24.1,24.4,23.3,22.5,21.3,20
1980,19.1,21.6,23.1,24.4,25.1,23.7,24.3,23.4,23.1,22.9,22,18.9
1981,17.7,20.7,22.3,23,23.4,23.8,23.3,23.6,22.1,22.5,21.3,17.9
1982,16.7,21.6,22.9,22.1,24,23.4,23.8,23.4,23.1,22.1,22,18.3
1983,19.4,22,22.8,24.4,24.1,24.2,23.8,23.5,23.1,22.6,20.7,19.9
1984,19.2,21.8,22,23.7,23.5,23.9,23.5,24,22.3,21.8,21.2,20.1
1985,19.4,22.4,22.6,23.2,23.1,23.9,23,23.8,22.9,22.2,22.3,19.3
1986,18.3,20.5,22,23,24.2,23.7,23.5,23.7,22.8,22.5,21.6,19.6
1987,19.7,21,22.6,23.5,23.9,24.3,24.1,23.2,22.8,22.5,22.8,18.7
1988,20.3,22.1,23.7,23.5,24.2,23.6,23.5,23.2,23.1,22.3,21.4,19.1
1989,21.7,21.1,22,23.8,23.8,23.6,23.7,23.5,23,22.3,21.4,18.9
1990,20.7,22,22.1,24,23.8,24.7,23.9,23.6,23.3,22.8,21.4,20
1991,21.3,21.8,24.2,24.5,24.6,24.5,24.1,24.1,23.8,23,21.6,21.1
1992,20.2,21.5,23,24.5,24.1,23.8,23.7,22.8,23.3,22.1,21.4,21.3
1993,20.5,20.8,23.2,23.6,24.5,24,24.5,22.9,23.3,23.2,21.7,20
1994,20.5,22.5,22.6,23.9,24.6,23.8,24.4,23.8,23.7,22.5,21.8,21.4
1995,20.5,21,22.8,24.1,24.6,24.1,23.6,23.5,23.6,22.7,22.2,19
1996,20.3,20.7,22.6,23.5,23.6,23.4,23,23.5,23.4,22.6,22.2,19.5
1997,19.1,21.7,22.2,22.5,24.2,24.3,24.3,24.1,23,22.7,22.2,21.8
1998,22,22.7,23.6,24.5,24.3,24,23.7,23.2,22.8,22.8,22.5,22
1999,21.1,21.3,22.1,24.1,23.5,22.8,23.8,23,22.9,22.2,21.6,18.5
2000,21,20.5,22.6,23.1,24,23.2,23.2,23.4,22.9,22.6,20.8,22
2001,22.2,21.9,23.1,23.9,24.1,23.7,24.5,24.3,23.3,22.4,20,18.3
2002,20.2,21.9,23.5,23.1,23.3,24.3,24.2,23.1,23.5,22.4,22.6,22.4
2003,20.1,21.8,22.9,23.8,24.4,23.5,23.8,23.7,23.1,22.7,21.8,19.5
2004,20.4,21.2,23.3,23.6,24.1,23.5,23.7,24.1,23.2,22.6,22.4,19.3
2005,19.9,22.9,22.4,23.9,24.6,24.6,23.9,23.9,23.4,22.8,22.2,20.5
2006,20.6,22.4,23.2,23.3,23.5,23.6,24.3,23.4,22.9,22.7,22.4,20.3
2007,20.9,21.4,23.4,22.9,23.8,22.1,23.1,23.9,23.3,23.2,21.1,21.3
2008,20.7,21.4,23.1,23.2,23.9,23.9,23.4,23.6,22.9,23,22,20.1
2009,18.8,22,22.8,23.6,23.6,24.9,24,23.9,23.3,22.9,21.5,20.8
