1901,21.2,21.5,20.3,18,16.3,13.8,15.6,15.4,16.2,19.2,18.9,19.1
1902,21.4,22.8,21.6,20,18,16.4,16.7,14.1,17.4,18.1,21.2,21.2
1903,20.4,22.2,22.6,18.6,15.7,16.1,14.3,15.8,16.6,17.5,19.7,21.1
1904,21.1,21.1,21.8,18.8,14.8,13.4,15,15.7,17.1,17.8,19.6,19.8
1905,20.9,22,20,19.2,17.3,14.9,14.8,15.8,17.1,20.7,19.3,20.7
1906,21.1,20.8,20.4,19,17.9,15.8,15.3,16.8,15.9,19.1,19.5,20.2
1907,21,21.7,21.9,19.4,14.6,14.9,13.6,14.7,17.5,17.7,19.2,21.1
1908,21.2,21,20.1,19,16.4,15.4,15.7,14.2,16.3,17.8,19.5,20.4
1909,22.1,22.9,20,18.3,14.7,14.5,15.7,15.9,16.2,17.2,19.4,18.5
1910,22.6,21.6,21.4,20.4,14.7,16.1,13.7,16.4,16,16.6,18.5,19.1
1911,22.4,21.8,19.6,18.7,16.8,13.1,13,14.9,16.2,17.3,20.7,20.9
1912,21.9,22.9,21.1,19.2,18.3,16.1,13.3,16.2,14.2,17.2,20.6,20.1
1913,21,22,22,19.8,17.1,14.3,15.8,16.1,17.1,18.7,19.5,19.4
1914,22.9,22,22.2,19.4,16.1,17.8,17.4,16.5,18.1,19.6,21.2,19.7
1915,22.8,23.4,21.3,21.5,19.7,14.7,14.9,16.9,17.1,17.9,18.4,19.8
1916,22.1,20.6,20.2,18.8,17.7,16,14.5,15.6,17.8,17.4,19.7,19.6
1917,21.2,21.3,20.5,18,14.1,13.2,13.3,13.7,16.6,17.5,16.9,18.9
1918,21.4,21,20.3,18.4,16.5,14.3,13.3,14.1,15.6,17.7,19,18.8
1919,20.2,20.6,20.9,19.9,19.2,16.8,15.7,15.4,13.9,17.6,18.8,19.6
1920,22.2,22,21.2,19.9,16.5,15,15.3,13.7,15.9,18.8,19.8,20
1921,21.8,21.9,21.7,18.6,17,13.8,13.2,17.3,15.8,17.3,18.1,20.3
1922,21.8,21.6,21.3,19.7,17,15.4,15.2,17.1,17,17.1,18.9,19.7
1923,21.7,21.6,21.5,20.8,16.3,15.1,13.4,16.1,16.3,17.6,19.1,21.3
1924,20.6,20.8,22.1,19.7,16.8,15.6,14.7,14.6,16.3,16,18.5,19.5
1925,22.2,22.5,20.6,20.9,17.2,13.6,12.6,17.5,17.2,17.3,19.4,20.5
1926,21.7,20.4,21.6,19.6,16,16.4,14.3,16.3,17.9,18.5,19.8,20.2
1927,21.6,21.5,21.7,20,16,14.6,14.2,15.1,16.5,17.7,19.8,19.7
1928,21.7,22.6,21.9,21.5,17.1,15.7,15.3,15.3,17,18.3,19.7,20.4
1929,22.1,22.1,20.9,17.7,15.6,15.3,15.3,15.9,17.5,19.3,18.3,20.7
1930,22.2,21.9,21.8,19.3,17.8,17.4,15.3,16.6,16.1,18.2,19.1,19.9
1931,22.9,21.2,21.4,19.7,16.4,14.4,15.5,15.6,15.5,18,18.8,20.9
1932,21.1,22.9,22.1,21,17,15,16.5,15.2,17.8,19.6,20.3,20.2
1933,21.5,22.5,20.7,18.3,17,14,13.8,16.1,16.9,18.3,18.3,19.1
1934,21.7,22.1,22.1,19.8,17.7,16.6,14.7,16.4,16.8,17.8,20,19.7
1935,21.2,21.8,21.8,18,15.2,16.5,16,15.4,16.1,18,18.9,20.9
1936,22.2,20.7,20.8,19.4,19.6,17.5,15.6,14.6,15.9,18.7,18.9,20.1
1937,19.7,21.8,21.4,18.4,15.4,15.6,15.9,17.3,16.4,17.4,18.1,18.3
1938,22.7,21.4,22.4,19,16.5,15.4,14.7,15.3,16.6,17.7,18.9,19.5
1939,21.6,21.8,21.9,19.1,17.9,15.5,13.5,16.9,15.9,18.6,19.2,19.4
1940,22,20.9,21.9,20.2,18.8,16.5,17.1,16.6,16.6,17.8,18.9,22.5
1941,23.2,23,21.3,22.2,18.2,14.8,14.6,17.7,14.3,18.4,19.3,20
1942,22.2,22.4,21.9,19.4,16.9,14.8,12.2,16.3,16.6,18.6,19.9,19
1943,21.1,21.8,22.2,18.1,18,16.7,15.6,14.4,15.9,18.5,19.6,19.2
1944,22.4,21.7,22.3,18.7,17,15.8,13.8,17.3,18.1,21.3,18.5,20.6
1945,21.7,22.8,21.2,19.6,15.7,14,15.4,18.2,16.5,19.5,19.6,19.6
1946,21.1,22.8,20.6,18,18.1,15,13.5,17,18.8,19,19.7,19.7
1947,22.5,22.7,20.2,19,17.9,16.5,13.4,15,16,15.9,17.8,18.3
1948,22.7,21.8,20.2,19.2,16.8,15.3,16.2,14.3,17.2,17.7,19.2,19.7
1949,21.5,21,22.7,18.3,16.3,16.3,15.2,15.9,16.5,17.3,18.7,19.7
1950,21.1,21.3,21.3,19.7,18.4,16.1,15.1,17.7,17.4,17.7,18.5,19.9
1951,21.2,21.6,21,16.6,16.6,14.6,13.9,14.8,17.4,18.3,19.3,18.5
1952,22,21.5,22.2,18.3,16.4,15.2,15.3,18,16.4,18.9,19.8,20.1
1953,22.6,21.4,22,18.7,17.7,15.6,13.2,16.4,18.3,18.9,19.2,19.8
1954,23,22.7,21.6,19.1,16.8,16.6,15.6,17.2,18,18.5,19.8,19.8
1955,21.8,23.1,21.6,19.6,16.6,15.4,14.9,15.8,17.5,17.3,18,20.3
1956,24.2,22.3,21,18.8,15.4,13.6,14.5,14.5,18.2,18.1,17.7,19.5
1957,22.1,20.9,21.6,18.9,17,15.4,14.6,16.6,16.4,20.1,19.7,21.1
1958,23.2,23.2,21.2,19,16.9,16.2,16.6,18.3,17,19.1,21,21.2
1959,22.8,22.9,21.3,22.3,18,15.3,17.5,16.7,18.7,19.7,19.8,20.5
1960,21.5,21,21.6,19.1,15.3,15.4,16,17.2,17.9,20.4,19.8,20.7
1961,22.2,22.4,21.4,20.4,17.4,16.4,16.5,18,19.8,20.7,21.1,20.4
1962,21.2,21.6,21.9,19.1,16.2,13.9,13.7,16,17.4,17.2,19.6,19.8
1963,23.1,21.9,23,19.6,16.8,14.9,16.4,18.1,20.3,19.7,21,20
1964,21.9,21.9,21.6,20.6,16.7,14.5,13.2,16.7,17.8,18.1,18.5,19.3
1965,20.9,22.2,20.2,19.9,17,17.1,15.5,17.5,18.8,19,20.3,21.1
1966,22.9,23.6,22,19.8,17.6,16.8,16.6,15.6,16.3,18.8,19.7,21.1
1967,21.7,22.3,21.4,20.1,18.8,16.1,16.2,18.8,18.3,21,19.4,18.9
1968,21.7,20.8,21.6,17.5,15,15.1,14.9,15.1,16.6,18.7,21.1,21.2
1969,23.1,23,22.3,19.1,17.6,16.3,15.6,16.8,18.4,17.1,20.2,19.2
1970,22,22.4,22.4,20.1,19,17,15.2,15.6,16.4,18.4,18.4,21.6
1971,23.5,22.8,22.8,18.9,16.6,14.7,14.5,16.5,17.2,17.9,18.4,20.3
1972,22.2,21.4,22.4,17.9,18,17.7,14.9,16.8,17.4,18.9,20.1,20.8
1973,23.4,24.1,21.6,22.6,17.7,17.3,16.9,16,16.9,18.7,18.4,21.5
1974,22.4,23.8,22.7,19.7,17.6,15.4,16.5,17.1,17.8,18.8,20.3,20.2
1975,22.2,23.5,23.1,19.8,17.3,16.2,14.1,19,19,19.1,20.1,21.6
1976,23.4,22,21.9,19.8,17.5,16.1,15.3,16.1,16.8,18,20.3,21.1
1977,23,24.2,23.2,19.7,18.4,16.6,19.2,17.4,18.5,20.3,20.2,19.9
1978,23.2,22.7,22.7,19,16.5,15.6,17,18.3,16.9,20.2,20.2,20.5
1979,20.1,22.5,21,19.1,17.4,15.1,14.8,18,16.8,19.8,19.4,20.9
1980,21.7,22.4,23.6,20.8,19.3,15.3,16.8,17.1,15.4,19.8,19.6,22.1
1981,22.7,23.5,22.2,19.6,19,15.5,14.2,17,18.6,18,21.2,20.2
1982,21.1,23,21.4,18.8,17.1,17.7,16.7,17.8,17.8,19.2,21.2,20
1983,23,23.3,21.5,20.7,19.1,17.2,17.4,17,15.3,18.9,21.3,21.3
1984,24.9,25.2,22.3,19.6,19.9,17.3,17.2,15.4,17,20.4,20.3,20.1
1985,21.4,23.2,22.8,21.5,17.5,15.1,15.2,18.1,17.5,20.3,21.2,21.7
1986,23.9,23.2,22.5,21.5,19.4,16.4,15.7,17.6,17,19.2,21.6,21.2
1987,23.8,22.5,22,21.6,16.9,15.2,18.5,16.3,16.7,19.6,21,21.5
1988,24.5,21.8,23,20.5,17.5,15,13.7,17.4,19,18.8,19.9,21.4
1989,22.7,22.9,22.4,21.5,17.3,15.9,14.5,16.5,17,17.7,20,20.6
1990,23.4,23.4,23.5,22.6,17.1,15.9,14.4,15.6,16.2,21,22.4,21.3
1991,22.1,22.3,21.6,20.6,18.5,17.2,15.8,17.3,17.5,19.9,21,21.9
1992,23.1,23.6,22.6,20.6,19.3,18.6,15.3,15.7,17.3,19.9,20.2,21.7
1993,23.5,22.5,22.7,21.4,18.3,16,16.9,15.9,17,20.8,21.5,21.4
1994,22.3,24.5,21.8,20.6,19.4,15.7,16.8,16.4,17.5,20.9,20.6,22.7
1995,24.1,23.4,22.8,21.3,18.2,16.7,18.5,19.8,17.7,18.8,20.8,21.4
1996,23.9,23.4,22.6,21.4,18,16.2,14.7,16.8,17.2,20,20.5,22.4
1997,22.9,23.6,21.9,20.4,18.1,16.3,17.2,18.1,19.3,20.1,21.7,22.9
1998,24.3,24,23.3,21.1,17.8,15.6,16.7,19,18.1,19.3,20.2,22
1999,23.4,23.6,23.5,19.8,17.2,15.8,16.8,17.3,18.2,17.9,18.9,21.7
2000,23,22.7,21.9,20.9,17.9,18.1,14.6,16.9,17.6,22.1,20.9,22
2001,24.4,24.4,24.2,22.7,18,16.9,16.9,18.5,18.2,20.4,21.6,21.3
2002,23.3,22.4,24.6,23.3,19.8,19.2,17.7,19.4,17.6,22.9,21.8,22.6
2003,23.6,25.5,23.2,21.7,18,18.8,17.5,15.9,18,20,21,21.8
2004,22.2,22.3,21.9,21.8,17,16.5,16,17.5,20.7,19.3,20.8,20.9
2005,22.9,23,22.6,22.6,20,18.9,16.8,19.3,18,20.9,20.8,20.7
2006,24.4,23.8,23.5,20.8,17.1,17.3,18.2,18.7,17.9,20.5,21,22.4
2007,23.4,24,24.3,22.3,17.5,18.3,16.2,18.2,20.2,21.4,20.5,22.1
2008,22.1,23,22.6,21,17.8,16.7,17.5,18.6,17.3,20.6,20.5,20.9
2009,22.6,24,24,21.1,19.4,15.5,16.4,17.9,19.2,19.9,23.6,22.3
