1901,22,22.2,21.4,19.8,17.8,15.9,16.8,16.9,17.4,18.5,19.1,20.1
1902,21.9,23.1,21.7,20.5,18.9,17.5,17.8,17.1,17.3,19.3,23.2,23.4
1903,21.5,23.6,23,19.4,17.2,17.7,16,17.4,18.4,20,21.6,23
1904,22.4,23.2,21.8,19.2,16.8,15.7,15.8,16.9,18.4,19.5,20.3,21
1905,22,23.5,20.7,19.9,19.2,17.3,16.7,17.7,18.3,20.7,20.9,23
1906,20.9,21.9,21.3,20.3,19.5,18,17.9,17.9,18.3,20.2,20.9,21.7
1907,21.3,22.3,21.9,19.9,17.1,17.8,16,16.1,19.2,19.2,20.6,22.5
1908,22.5,22.3,21.2,20.5,18.6,17.5,17,17,18.1,19.3,21.4,22.6
1909,23,24.1,22.5,20,17.4,16.5,16.9,17.3,17.9,18.6,20.1,21
1910,23.1,22.3,22.3,20.9,17.2,17.4,15.7,17.8,18.1,17.6,19.7,20.6
1911,23.2,22.7,21,20.2,18.2,15.2,15.1,16.7,17.7,19.1,22.6,22.6
1912,22.1,23.6,21.7,20,19.3,16.8,15.3,17.4,16.1,18.1,22,21.3
1913,21.8,22.8,22.4,20.6,18.3,16,17.4,17.3,18.7,19.4,20.6,20.5
1914,22.8,22.6,22.6,19.9,17.2,18.4,18.1,17.9,19.6,20.1,22.2,21.3
1915,23.2,23.1,21.9,21.5,20.9,17,16.6,18.1,18.7,19.1,19.9,20.8
1916,21.7,21.6,21,19.7,18.5,17.7,16.5,17,19.2,18.6,20.7,21
1917,22.4,22.5,21.2,19.1,16.4,14.7,15,15.7,17.4,18.3,19,20.8
1918,22.2,22.3,21.7,20.1,18.8,16.4,15.1,15.6,17.3,19.4,20.1,20.5
1919,21.2,21.4,20.8,20.3,19,17.1,16.6,16.3,18.6,20.1,22,21.7
1920,22.6,22.9,21.7,20.4,17.9,16.7,17.4,15.4,17.3,19.5,21.1,21.2
1921,22.2,23.3,22.2,19.6,18.1,16.2,15,18.2,17.6,18.5,19.3,21
1922,22.9,22.7,22.5,20.2,18.6,16.8,16.1,18,18.4,19.2,20.8,21.8
1923,22.7,22.7,22.6,21.3,18.7,17,14.8,17.1,18.1,19.2,20.8,23
1924,21.7,21.9,22.4,20.9,18.7,16.8,16,16.3,17.6,17.8,20,21.2
1925,22.1,22.6,21.1,20.7,18.7,15.2,14.4,18.2,18.3,18,20.6,22.3
1926,22.3,21.3,21.9,20,17.8,17.2,16.3,17.2,19.3,19.9,21.3,22
1927,22.1,22.5,22.2,20.7,18,16.3,15.4,16.8,18,19.5,21.1,21.5
1928,21.9,23.2,22.7,21.5,18.8,17.9,16.5,16.9,18.6,19.2,20.6,21.8
1929,22.6,22.9,21.9,18.8,17.1,16.9,15.6,17.4,18.9,20.7,19.5,23.3
1930,23.4,23.1,22.6,19.9,18.4,18.5,16.9,17.6,17.7,20.1,20,21.6
1931,22.7,21.9,22.2,20.8,18.3,16.7,16.8,16.4,17.4,19.3,20,21.6
1932,21.8,23.5,22.6,21.5,18.3,16.7,17.6,16.6,19.2,20.6,21,22.3
1933,22,23,21.6,19,17.6,15.5,15.4,16.5,17.7,19.2,19.3,20.1
1934,22.6,22.9,22.3,20.7,18.6,17.3,15.5,16.6,18.3,18.7,20.6,21.4
1935,21.8,22.9,22.8,19.4,17,17.3,17.7,17,18.2,19.9,20.5,22.5
1936,23.1,22.1,21.8,20.8,20.5,18.3,16.8,16.4,17.4,19.3,20.6,21.4
1937,21.1,23.1,22.5,20.4,17.4,16.8,17.2,18.3,17.4,19,19.7,20
1938,23.9,22.7,22.9,20.3,18,16.4,15.9,16.6,18.3,19.7,21,21.1
1939,22.5,23.2,23,20.2,19.1,17.2,15.5,17.6,17.2,19.1,20.7,21.1
1940,22.9,21.9,22.2,21.5,19.3,17.1,17.1,17.1,17.4,19.3,20,23.4
1941,23.2,24.8,22.2,22.6,19.9,16.5,16.5,19.1,17,20.1,21.7,22.8
1942,24.4,25.2,23.1,20.5,18.6,17.2,15.7,17.7,17.8,20,20.8,20.7
1943,21.8,22.7,22.7,19.2,18.8,17.7,16.2,15.5,17.3,20.2,20.9,20.5
1944,23.1,23.4,23.2,19.5,17.7,17.1,15.4,17.2,19.5,22.1,20.4,22.3
1945,23.1,24.2,22.1,20.1,17.5,16.3,16.6,18.9,17.9,20.5,21,21.6
1946,24.2,25.6,22.4,19.8,19.9,17,17.5,18.9,20.2,21.5,21.5,22.8
1947,23.6,24.6,21.4,20,19.8,17.9,16.4,17.1,18.9,19,19.6,21.9
1948,24.1,24.2,21.5,20.4,19,17.1,18.2,17.7,19.1,20.3,21.1,22.3
1949,23.4,23,23.5,20.5,18.2,18,16.2,17.6,18.7,19.7,20.1,21.6
1950,23.9,24.1,22.7,21.1,19.9,17.7,17.1,19.2,20,20.9,20.5,22.8
1951,23.6,22.9,22.2,19.3,18.8,16.4,15.6,16.4,18.7,21.2,21.6,20.1
1952,23.7,23.6,22.3,20.2,18.7,17.7,17.2,18.6,19.2,21.3,21.5,23.3
1953,24.4,23.7,23.4,21.1,19,17.6,16.2,18,20.3,21,21.1,21.5
1954,24.5,24.8,23.4,20.5,19.4,18.5,17.7,17.7,20.1,20.2,21.1,22.6
1955,23.4,24.3,23,20.5,19.1,17.5,17.4,17.4,19.6,19.3,19.8,22.9
1956,25.5,24.2,22.6,20.9,18.3,16,16.5,16.5,19.9,20,19.9,21.7
1957,23.6,23.9,22.7,20.8,17.9,16.9,16.9,18.5,18.8,21.9,20.6,22.6
1958,23.5,25.1,22.9,21.3,19.3,17.4,17.5,19.3,19.5,21.7,23.2,24.4
1959,24.5,25.4,22.5,23.6,20.1,17.6,18.5,18.7,21,22,21.7,22.5
1960,23.7,23.5,21.8,20.7,18.2,17,17.1,18.5,19.6,22.9,21.5,22
1961,23.9,24,23.2,22,19.4,18,17.6,19,22.3,22.9,22.6,22.9
1962,23.6,23.1,23.1,20.7,18.4,15.8,16.3,17.8,19.5,20,21.3,21.7
1963,25,23.7,24.2,21.3,18.2,17.2,17,18.3,21,22.4,22.3,22.9
1964,22.9,23.7,22.5,21,18.7,16.7,15.5,18.5,19.9,20.3,20.4,22.2
1965,22.6,23.9,22.4,21.4,19.6,18.5,17.3,19,20.8,21.2,21.9,24.8
1966,24.7,25.6,23.7,21,19.6,18.4,18.2,17.9,19.2,21.9,21.8,24.1
1967,24,25,22.8,21,19.3,18.1,17,19.5,19.9,22.8,21.2,21.3
1968,24.1,22.9,22.6,19.4,16.4,16.1,17,17.1,18.7,20.6,21.5,23.8
1969,24.7,25.4,22.8,20.8,20,17.9,17.6,18.3,19.7,20,22.2,22
1970,24,24.6,23,20.8,20.1,18.7,17.2,17.2,19,19.7,20,24.7
1971,24.4,24.5,23.6,21.2,19.4,17.4,17.5,17.9,18.3,19.4,20.3,22.4
1972,23.7,23.5,23.6,20.7,19.7,19.5,17.9,19,19.5,20.9,22.2,23.1
1973,24.8,25.3,23.1,23.4,19.5,19.4,19.1,18.3,19,20.2,20.9,23
1974,23.1,23.3,22.6,20.8,19.4,16.9,17.1,18.1,19.4,20.3,22,21.1
1975,22.2,23.6,23.5,19.7,17.9,16.8,15.8,18.9,19,20,21.1,22.3
1976,23.5,23.5,22.5,21.6,18.6,17.5,16.4,18.1,17.9,18.9,21.6,21.7
1977,22.8,24.1,23.3,21.4,19.7,18.2,19.3,19.2,19,20.6,21.2,21.3
1978,23.5,22.7,22.5,20.4,18.5,16.7,18,17.5,18.6,20.9,21.9,22.1
1979,20.6,22.3,21.7,20.2,19.7,16.5,16.5,18.8,18.1,21,21.4,22.5
1980,22.1,23.6,24.1,21.2,19.9,18,17.9,18.5,17.9,20.3,21.4,23
1981,23.4,23.4,23.1,20.5,19.3,17,16.2,18,19.7,18.8,22.3,22.1
1982,21.4,23.2,21.8,19.3,17.9,18.4,17.9,18.5,18.4,20.3,23.2,21.4
1983,22.9,23.6,23,21.1,20.3,17.8,17.8,17.1,17,19,21.9,22.4
1984,24.3,24.3,22.9,20.8,21.1,19,18.3,17.3,18.3,20.9,21.6,21.4
1985,21.8,23.8,23.6,22.2,18.9,16.3,16.6,18.7,18,20.2,21.2,21.3
1986,23.4,23.7,23.7,22.4,20.7,17.9,16.5,18.6,18.4,20.2,22.4,22.2
1987,24,23.5,22.8,22.4,19.1,17.2,18.7,17.8,17.8,20.7,22.2,23
1988,25.6,23.8,23.5,21.6,19.6,16.6,15.4,17.8,19.7,19.6,20.9,22.1
1989,23.1,23.5,23.7,22.7,18.6,17.7,16.4,17.8,18.7,18.3,22.1,21.7
1990,24.7,23.7,23.9,23.4,19,18.1,17,17.2,18.1,21.1,23.4,21.9
1991,22.1,23.2,23.4,21.9,19.9,19.1,17.3,18,18.1,19.9,22.3,23.3
1992,22.2,22.5,23.2,22.3,20.8,18.9,17.7,17.2,17.8,19.6,21.5,21.4
1993,23.4,22.9,23.6,22.5,18.9,17.7,18.9,17.7,19.3,20.9,23.2,22
1994,22.6,25,22.9,21.4,20.1,17.8,17.6,16.9,19.2,20.9,22.5,22.9
1995,24.8,23.8,23.3,21.6,19,17.9,18.8,20.3,19.4,19.5,21.6,21.4
1996,23.8,23.5,23.6,23,18.1,17.8,16.3,16.6,17.5,19.7,21.2,22.9
1997,22.8,23.7,22.6,21.3,18,17.2,18.4,18.3,20,23,23.8,24.5
1998,24.9,24.7,24.3,22.4,19.2,17.6,17.6,19.9,19.7,19.6,22.1,23
1999,23.9,23.7,23.6,21.6,18.3,17.8,17.4,17.3,19.3,18.1,21.2,22
2000,23,23.1,22.8,21.5,18.7,17,16.5,17.9,18.5,22.4,21.6,22.5
2001,24.8,25.6,24.1,23,20,18.8,18.5,18.2,19,21.1,22.2,22.6
2002,24,23.1,24.4,23.1,20.7,19.5,18.2,20,18.8,23,22.7,23.4
2003,21.5,25.4,23.9,22.3,19.8,19.7,18.4,18.2,19.4,21.2,22.3,23.4
2004,23.9,22.9,22.6,21.8,19.7,17.8,17.1,18.3,20.9,21,22.4,22.4
2005,23.9,24.1,23.5,22.8,20.1,18.7,18,19.4,19.3,22.5,21.1,21.9
2006,25,25.1,23.3,21.8,19,17.6,18.4,19.3,19,20.8,21.4,22.9
2007,23.9,24,24.5,22.5,19.5,19.1,18.3,18.7,20.1,22.1,22.3,23.4
2008,23.2,24,22.8,23.1,19.6,18.6,18.1,19.4,19.2,22.1,21.9,22.1
2009,23.8,24.5,24.1,21.8,20.1,18.3,19.1,18.7,20.7,21.1,23.9,22.7
