1901,21.7,21.5,26.8,30.7,34.9,35.7,33.8,31.5,31.7,30.8,26.9,24.3
1902,23,23.1,27.7,31.2,34.4,34.4,33.4,31.2,31.3,30.3,26,22.7
1903,21.4,21.7,24.6,28.8,34.5,35.2,33.3,32.1,31.7,30.2,25.2,22.4
1904,22,22.7,25.2,30.1,33.9,34.5,33.1,31.3,31.2,30.1,27.3,23.7
1905,20.9,20.9,24.5,29.6,34.4,34.8,33.5,31.5,31.3,30.7,27.1,23.6
1906,21.4,21,24.8,29.2,34.7,34.6,33.2,30.9,30.8,30.2,27.7,24.5
1907,22.9,21.1,25.5,29.2,33.8,34.5,33.6,31.1,30.7,29.9,26,23
1908,22.2,22.3,25.6,30.4,34.1,35.4,32.7,31.2,31,29.9,26.4,23.5
1909,21.5,22.7,26.2,29.9,34,34.7,33,30.9,30.8,30,27,23
1910,21.5,22.7,25.2,29.1,33.7,34.5,32.5,31.1,30.7,29.3,25.9,22.7
1911,20.4,21.7,24,29.1,33.8,34.2,32.7,30.7,30.7,29.7,25.4,23.6
1912,22.2,22.7,25.5,30,34,35.7,33.3,30.7,30.7,29.7,26.1,23
1913,22.4,21.3,24.2,30.5,34.4,34.8,32.5,30.5,30.4,30,26.1,23.3
1914,22.8,21.7,25.3,30.1,34.6,34.4,32.7,31,30.8,30.3,27.2,23.1
1915,22.5,22.3,26.3,29.6,34.1,35.8,33.5,31.5,31.9,30.5,26.8,23.4
1916,22.6,21.6,26.9,29.8,34.4,35.3,33.6,31.3,31,29.7,25.7,23.3
1917,22.6,23.3,25.3,30.1,34.1,35.1,33.9,31.3,31.2,29.7,25.8,22.9
1918,21.9,22.7,25.4,29.3,33.9,34.2,33.2,31.4,31.1,30.8,26.6,23.3
1919,22.4,23,26,30.4,34.2,34.5,33.2,31.5,31.2,30.4,26.5,23.4
1920,22.4,21.9,26.7,30,34.3,35.5,33.3,31.3,31.7,31.2,27,22.2
1921,22.3,22.6,27,31.3,34.2,35.3,33.7,31.1,31.6,30.1,26.7,23.4
1922,22.5,22.5,26.2,30.5,34,35.2,33.9,31.6,31.4,30.2,26.9,24
1923,22.1,22,26.6,29.8,34,35.3,33.9,31,31.1,30.2,25.9,23.2
1924,22.3,22.6,27.6,30.5,34.4,35.7,33.8,31.2,31.3,30.6,26.4,23.4
1925,20.9,20.9,27,31.3,34.4,34.9,33.1,31.5,31.6,31.2,26.2,23.7
1926,22.6,23.9,25.9,29.1,34.1,35.4,33.7,31.7,30.9,30.3,26.3,23.9
1927,21.8,21.8,25.6,29.8,34.8,35.5,33.5,31,31.7,31,27.1,23.6
1928,22.3,22.6,26.2,31.3,34.6,35,33.7,31.3,31.1,30.2,26.3,22.5
1929,22.4,22.6,26.9,30.9,34.5,34.6,32.8,30.4,30.3,30.1,26.1,22.7
1930,21.1,22.9,26.1,30.2,34.7,35.3,32.6,30.9,31.2,30.1,26.3,23.4
1931,22.9,21.4,25.8,30.3,33.7,34.2,32.7,31.8,31,29.6,26.6,23
1932,22.9,22.6,26.1,30.2,33.8,34.7,32.8,30.7,31.1,29.3,26.5,21.5
1933,21.4,22.4,25.1,29.2,34.5,34.7,32.9,30.9,30.6,29.8,26.6,24.5
1934,20.7,23.7,24.9,30.1,33.5,34.8,32.7,31.4,30.9,29.4,26.5,24.4
1935,21.5,22.9,26.3,29,33,34,32.7,31.4,30.7,29.7,27.2,24.6
1936,21.1,23.4,24.9,30.1,35.3,34.1,32.9,31.8,31.6,29,25.6,23.1
1937,21.1,22.9,24.9,29.3,34.3,34.8,33.7,31.4,31,29.7,26.8,22.5
1938,22.4,23.2,25.7,30.4,34.7,34.7,33,31.5,31.5,30.1,25.6,23.2
1939,22.7,23.1,25.2,29,33.9,35.3,33.4,31,31.6,30.3,26.9,25
1940,23.5,23.6,25,30.2,35,35.2,33.8,31.2,31.4,31,27.4,24.1
1941,22.6,24.1,27,30.9,34.8,35.8,33.9,31.7,31.8,31.1,26.7,23.8
1942,22.5,23.2,26.8,30.8,34.9,35.5,33.7,31.1,31.8,30.7,27.5,22.8
1943,21.6,22.6,26,28.8,34.7,35.2,32.6,31.4,31,30.1,26.7,25.3
1944,23.7,23.2,26.4,29.9,34.2,35.6,33.1,31.7,31.5,30.2,27.4,23
1945,21.2,22.5,25.8,29.4,34.5,35.1,32.9,31.6,31.5,29.6,26.9,23.2
1946,22.1,22.8,25.7,31.4,34.4,35.6,33,31.6,31.2,31.9,25.3,21.7
1947,22.9,22.8,25.9,30,33.7,34.7,33,31.5,31.1,30,28.2,24
1948,22.6,23.2,25.6,30.2,34.8,34.8,33.2,31,31.1,30.3,25.2,23.8
1949,20.7,22.3,25.9,30.6,35.1,33.6,33.6,31,31.6,28.2,24,23.7
1950,21.8,19.8,25,28.2,33.5,34,33.1,32,31,30.2,24.7,21.7
1951,22.7,22.2,24.6,28.2,33.9,34.7,33.2,31.6,32.4,32,27.3,24.6
1952,21.6,23.5,26,30.8,33.9,35.2,33.1,30.8,30.5,29.8,26.4,23.7
1953,23.2,24,26.6,30,32.8,34.6,34.3,31.8,32,30.5,27.5,25.9
1954,22.9,23.4,26.9,30.7,34.9,35.3,33.1,31.8,32,30.1,26.5,25.2
1955,22.2,22.4,26.3,30.3,34.1,34.4,33.1,30.5,31.8,29.8,26.9,24.1
1956,21.4,23.7,27.3,30.3,36.4,35.6,33.3,31.7,31.7,30.6,26.9,23.6
1957,21.4,21.8,25.1,28.3,34,35.6,33.8,31.9,30.9,29.9,26.4,23.9
1958,23.1,23.2,26.6,31.4,34.2,36,33.9,31.9,31.6,30,25.7,23.4
1959,21.5,22.3,25.9,31,34.2,34.9,34,31.9,31.9,30.5,25.4,22.2
1960,22.6,23.7,25.1,29.1,33.7,34.9,33.5,31.5,31.7,30.5,26.7,23.5
1961,22.8,22.8,26.3,29.1,34.5,35.1,33.8,32.9,31.3,29.8,25.7,24.2
1962,22.3,23.7,26.5,30.7,34.1,35.2,33.6,32.1,31.9,29.7,26.4,22.9
1963,23,23.7,26.3,30.1,32.5,34.6,33.6,30.9,30.8,30.3,26.2,23.5
1964,19.8,22.3,26.7,30.5,34.4,34.7,33.2,31.2,31,30,25.6,21.2
1965,21.3,23.4,26.2,27.9,34.1,34.4,33.4,31.7,31.9,31,27,23.7
1966,22.9,23.2,25.2,29.6,34.3,34.6,33.1,32,31.4,31.1,26.8,23.2
1967,22.4,23,26,29,34.7,35.3,34,32.3,30.8,30.7,26.1,22.9
1968,22.1,21,25.7,30.2,34.2,34.9,34.2,32.3,31.5,30.3,27.1,24.2
1969,22.3,22.5,27.8,30.9,34.6,35.8,33.7,32,32.3,30.9,27.4,25
1970,22.8,24.4,26.3,31.4,35.3,35.3,34,32.3,32.3,30.7,27,24.6
1971,23.5,23,27.1,31.7,34.5,35.1,33.7,31.9,33.3,30.5,26.3,23.9
1972,22.2,20.8,25.4,29.4,34.5,36.3,34.7,32.6,32.2,31.4,27,23.2
1973,20.7,23.8,26.6,32.2,35.4,35,33.2,31.3,30.7,31.1,26.7,24
1974,21.8,21.9,27.4,29.7,34.1,34.4,34.5,32.4,32.3,32.3,27.1,23.5
1975,22.8,22.7,25.5,31.1,35.4,35.5,33,32.1,32.2,31.1,26.6,24.8
1976,22.9,23.4,26.3,30.2,35.1,36.8,35.4,32.7,31.7,30.9,27.5,24.7
1977,21.2,25.4,30.2,33.3,37,36.7,33.9,32.2,32.6,32.2,28.6,26.2
1978,24.3,23.9,27.2,32.3,36.9,37,35.2,30.9,31,30.8,27.7,25.3
1979,23.1,23.6,25.8,31.3,34.2,36.2,34,32.6,32.6,30.8,27.5,23.7
1980,22.6,23.4,26.4,32.1,35,35.5,33.7,30.9,31.4,31,27.2,24.1
1981,23.7,24,27.4,32.5,35.6,36.8,33.7,32.7,33.4,32,26.9,24.4
1982,22.4,21.8,25.6,30.9,35.1,36.9,34.7,32.1,32.9,31.6,26.8,23
1983,23.1,22.2,25.2,29.7,35.3,36.8,34.5,32.4,32,31.9,27.3,24.5
1984,23,22.9,27.5,32,34,34.4,32.9,31.1,30.9,30.4,26.2,23.5
1985,22.5,22.8,26.4,29.5,33.8,33.1,31.4,31,30.3,29.4,26.1,23.3
1986,22.1,22,25.1,30.4,34.3,33.7,32.1,30,31.1,29.9,26.2,22.3
1987,22.6,23.1,25.4,29.7,33.6,34.4,33.7,31.2,30.8,30.4,26.9,23.5
1988,22.1,22.8,25.7,30.6,34.2,34.8,33,31.1,31.9,30.6,26.6,24.5
1989,22.2,22.7,25.2,29.3,33.7,34,32.1,30.6,30.7,29.9,27,23.3
1990,22.2,22.9,26,30.1,33.8,34.7,33,30.6,30.6,30,26.8,24.4
1991,22.8,22.7,25.7,30.7,33,33.8,32.5,29.6,30.2,29.8,26.3,23.5
1992,20.6,21.5,23.8,27.6,34.3,35.9,33.2,31.4,31.4,29.9,26,23.6
1993,21.7,23.7,25.8,29.8,34.3,35,33.9,31.5,31.3,31,27.1,24.6
1994,22.7,22.7,26.2,30.1,34,34.3,32.6,31,31.5,30,27.1,23.6
1995,22.9,23.5,24.5,29.2,34.4,34.6,32.6,31.3,31.2,30.2,26.5,22.8
1996,21.6,23.2,25.4,30.6,33.9,34.3,33.2,30.2,30.6,29.3,25.9,23.3
1997,21.9,23.3,24.3,28.1,33.6,34.1,33.2,31.1,31,29.3,25.5,23.2
1998,21.8,22.2,26.1,30.9,34.8,35.4,33,32,31.6,31.1,27.4,25.8
1999,22.8,23.6,25.8,31.1,33.9,33.5,33,31,30.9,30.9,27,23.8
2000,23.4,24,26.1,31.6,34.3,34.3,33,32.3,31.2,31.1,26.4,23.3
2001,22.2,21.4,26.7,31,37.4,35,34.4,31.5,31.5,32.1,27.1,26.5
2002,23,22.9,27.1,31,35.3,35.4,34,31.3,30.5,31,26.9,24.3
2003,21.2,24.4,26.4,32,34.8,35.3,32.9,31.3,30.6,31.2,27.1,24
2004,23.6,24.5,28.3,32.5,35.5,35.8,34.3,30.2,31.6,31.3,27.9,24.3
2005,22.2,23.5,27.2,31.1,34.7,35.5,32.5,32.1,31.9,31.2,27.6,25.9
2006,22.6,24.6,26.4,30.7,34.9,36,33.3,32.2,32.7,31.3,27.9,23.2
2007,23,24.6,26.6,31.8,35.2,35.5,34.2,31.8,31.9,30.6,27.6,25.4
2008,21.5,22.8,27.8,31.3,34.5,35.1,33.1,30.5,32.2,31.7,26.8,23.5
2009,22,24.7,27.8,30.1,35.6,36.2,34.5,32.7,32.2,31.2,27.3,24.8
