1901,28.9,31.7,35,38.2,35.5,32.9,32.7,31.9,31.6,32,30.1,28.4
1902,28.7,31.5,35.7,36.6,34.9,32.1,31.8,31.3,31.5,31.3,30.1,28.3
1903,28,30.6,34.3,37.5,35.2,32,32.6,30.7,31.4,31.9,29.2,26.8
1904,27.9,30.7,34.8,35.8,34.7,32.2,31.8,31.5,32.1,31.9,29.1,26.9
1905,27.5,30.4,33.8,36.2,35.1,32.6,32.3,31.1,32.1,31.8,30.2,28.7
1906,29.4,31.1,34.5,36.6,35.8,32.4,32.6,31.2,32.6,31.6,29.9,28.2
1907,28.7,31.3,34.2,36.8,34.5,32.3,31.7,31.6,31.5,32,30.1,27.6
1908,28.6,31.4,35.9,38.2,34.8,32.5,32,31.8,32,31.8,29,28.6
1909,28.7,31.4,36.1,37.4,34.2,32.1,32.4,30.8,32.4,32.2,30.2,27.2
1910,28.4,31,34.3,36.9,35.2,32,31.6,31.2,32,31.1,30.3,27.4
1911,28.8,30.9,34.4,36.8,34.7,32.4,32,31.5,32.1,31.4,30.2,28.2
1912,28.7,31.3,34.5,36.8,35.2,32.5,31.9,31,31.8,31.1,29.3,27.6
1913,28.7,32.5,34,36.1,34.3,32.3,32,31,31.6,31.1,29,27.1
1914,27.7,31.4,34.7,36.3,34.8,32.4,32.1,30.6,31.7,30.8,30.2,28.5
1915,28.8,32.3,34.9,37.2,34.3,32.2,31.7,31.4,31.4,32.5,30.2,27.3
1916,27.7,32.1,35.2,36.6,35.2,32.7,32.7,32.1,32.7,31.6,31,28.1
1917,28.2,31,34.5,36.2,34.8,32,32.5,31.8,32,32,31.3,28.2
1918,28.5,31,34.3,35.7,33.4,31.5,32.7,31.2,32.8,32.1,30.7,29.3
1919,29.7,31.8,36.1,37.6,36.5,33,32.4,32.6,31.8,32.4,30.7,28.6
1920,28.8,30.9,34.6,36.9,34.9,33,33.3,31.8,32.2,32.1,31,29.4
1921,29.8,31.9,34.9,37.7,35,32.5,32.7,32,32.7,31.1,30.5,28.7
1922,29.8,32.5,35,37.1,35.3,32.6,32.6,31.7,32.8,32.5,30.3,28.7
1923,30.2,29.6,35.5,36.9,34.4,32.6,31.6,31.2,32,31.2,30.1,28.6
1924,29.5,31.3,36.5,38,35,32.4,31.6,30.8,31.4,31.2,29.6,26.9
1925,27.9,30.8,35.7,36.6,34.3,32.6,32.7,31.5,32.4,31,30.4,28.5
1926,29.4,31.3,34.2,36.6,34.9,32.3,32.5,32,32.5,32.6,30.7,29.1
1927,28.2,31,34,36,34.1,32.6,33.1,31.9,31.9,31.6,30.5,29.6
1928,30.6,32.6,35.1,37.9,35.1,31.4,32.8,31.8,32.5,31.7,30.2,30
1929,29.9,31.5,35.5,36.9,34.6,32.1,33.2,31.9,32.5,32.6,30.6,29.2
1930,28,31.3,34.4,37.3,34.4,32.1,32.2,30.5,32.1,31.3,29.6,29
1931,30.2,31.7,35.7,39,35.7,32.8,32.4,32.1,31.6,30.9,29.2,28.3
1932,29.3,30.4,35.6,37.8,36.9,32.7,32.2,31.3,31.5,31.8,30.5,27.6
1933,30,31.8,36.4,37.1,34,32,31.9,30.8,31.7,31.6,29.5,28
1934,29.6,31.2,35.5,38,37,32.2,31.5,31.1,31.8,31.2,29.4,26.7
1935,29.3,31.4,36,37,37.2,32.1,32.1,30.8,32.2,32.2,30.9,29.2
1936,28,30,35.6,37.2,35,32,31.4,31.2,31.5,30.7,32,30.6
1937,28.9,32.1,35.5,38.2,33.9,32.2,32.1,31.3,31.9,32.1,31.9,28.3
1938,29.5,31.2,36,38.4,32.7,32,31.2,30.9,31.4,31.4,27.6,28
1939,29.4,31.2,34.8,37.8,34.8,31.7,30.5,30.6,30.7,31.7,29.7,27
1940,28.9,30.9,32,38.4,33.9,31.9,30.8,31.2,31.4,31.7,29.5,27.6
1941,29.6,31.4,35.6,38,35.4,32,32.1,31.5,31.6,31.9,30.3,29.4
1942,29,33.1,35.1,37.1,34.6,32.2,32.1,31.2,31.7,32.6,30.2,27.8
1943,28.4,30,34.5,36.1,35.3,31.9,32.3,30.9,31.9,31.9,30.4,28.5
1944,28.4,31.1,35.8,37.2,35.3,32.1,32.5,31.8,31.5,32,30.5,29
1945,29.9,30.8,35.4,37.7,35,32.4,32.3,30.9,32.3,31.2,31.1,27.7
1946,28.9,31.9,35.7,35.9,34.6,33.1,32.9,31.6,32.1,30.7,31.2,29.7
1947,30.2,32.6,35.8,36.7,36.2,32.5,31.9,32.1,31.7,31.3,30.6,28.8
1948,29.5,31.3,33.5,36,33.1,32.8,32.3,31.7,31.8,30.9,29.8,29
1949,28.8,30.9,34.6,35.1,34.4,32.7,32.1,31.3,31.4,31.8,29.8,28.4
1950,28.8,31,34.4,36.9,35.7,32.4,32.1,31,32.2,31.2,29.3,26.1
1951,27.2,30.7,34.8,37.3,35.2,32.1,32.2,32,32.7,32.1,31.1,27.9
1952,28.5,32.2,33.7,37.3,36.2,33.1,31.9,31.5,31.4,31.6,29.5,27.2
1953,28.2,30.9,35.5,38.5,33.7,33.6,31.8,31.7,31.7,31.8,29.9,28.9
1954,28.8,32.1,35.6,38.7,34.3,32.2,31.9,31.2,31.8,30.6,29.6,27.9
1955,28.1,31.8,34.9,37.4,34.5,32,31.1,31.2,31.9,31.6,29.6,26.9
1956,28.4,31.2,35.7,38.3,32.2,32.2,32.3,31.4,31.5,31.3,29.7,28.5
1957,28.8,30.3,35.4,38.9,37.6,33,31.8,32.1,32.5,31.7,31.1,29.4
1958,29.5,31.5,35.2,38.7,36.1,33.7,32.3,31.8,32.5,32.3,30.8,28.1
1959,28.4,31.2,34.2,37.9,35.4,33.3,32.4,31.1,30.7,31.2,30.2,30
1960,28.5,31.5,35.1,39.2,36.3,33.2,31.9,31.6,32.1,31.5,30,27.6
1961,29,30.3,35.6,37,34.7,32.9,31.6,31.3,30.9,31.4,29.6,27.5
1962,27.3,30.4,35,37.2,35.6,32,32.7,31.5,32.4,31.1,30.2,28.7
1963,28.2,32.4,34.8,35.4,34.5,32.3,31.6,31.5,32.4,30.8,30,27.5
1964,28.5,31.5,34.9,37.1,33.8,32.3,31.3,31.4,31.8,31,29.7,27.5
1965,27.8,30.5,34.3,37.5,35.6,31.8,31.8,30.9,31.3,30.6,29.6,28.1
1966,28.6,32.4,35.1,38.7,35.9,31.6,32.4,31.1,31.8,31.2,31.3,28.7
1967,28.6,31.5,34.2,36.8,35.1,33.3,32.4,31.9,30.9,31,29.4,28
1968,27.8,30.1,34.7,36.3,34.7,31.8,32.6,31.5,32.2,31,30.4,29.1
1969,28.5,32.2,35.2,37.8,35.6,32.9,32.2,31.1,32.4,31.5,29.7,28.2
1970,27.9,31,34.7,37.8,33.8,32.4,31.5,31.4,31.3,30.9,29,27.6
1971,27.6,30.6,35.1,36.6,35,31.7,31.1,30.4,32,31.1,28.8,27.6
1972,27.9,30.3,35.7,36.7,36.8,33.1,32.4,31.2,32.6,32.1,30.4,28.2
1973,29,32,35.7,38.2,33.4,32.7,32.6,31.7,31.3,31.8,28.6,27.1
1974,27.4,30.9,32.7,35.9,34.6,32.1,31.4,31.1,31.5,32.5,30,27.7
1975,27.2,30.9,37.2,35.6,32.3,32.3,31.6,31.6,31.7,31.9,29.1,26.8
1976,27.3,31,36.8,34.9,33,32.1,32,30.8,31.8,31,28.9,27.3
1977,27.6,29.3,34.4,34.9,34,31.9,31.4,30.5,31.2,30.5,28.9,27.5
1978,26.4,29.6,34.3,37.5,34.6,32.7,32.3,32.1,31.7,32.2,31,29.2
1979,29.6,32.2,34.7,37.6,37,33.5,33.1,31.1,32.2,32.2,31.4,28.4
1980,29.2,32,34.9,39.3,36.5,32.3,32.2,31.1,32,30.7,30.4,28
1981,28.3,32,35,35.8,34.7,32.3,31.5,31.6,32,31.7,30,27.1
1982,27.9,30.5,34.7,36.7,37.2,32.4,32.7,31.2,31.8,32.2,30.2,27.2
1983,28.1,30.8,34.1,37.7,37.5,32,33.2,32.2,32.1,31.6,29.2,26.9
1984,28.6,32.4,35.8,38,35.5,32.5,31.9,31.6,31.8,31.5,30.7,28.8
1985,29.3,31.5,35.6,37.2,34.9,31.8,31.6,31.9,32,32.2,29.2,27.7
1986,28.5,32.6,35.4,38.2,35.6,33.6,32.2,32.5,31.9,31.9,30.5,29.3
1987,28.9,31.7,34.4,36.9,38.1,32.6,32.9,32.1,32.5,33.1,31.2,28.4
1988,29.6,32.9,36.1,37.9,35.5,32.3,32.7,32,32.9,32.3,30.1,28.8
1989,29.3,31.8,35.2,37.6,34.3,32.7,32.3,32.3,31.9,30.8,30,27.7
1990,29.4,31.5,33.7,37.2,34.7,33.3,32.4,32.4,32.2,31.6,30.4,28.3
1991,30,33.1,36.4,36.8,36.5,32.2,32.9,32,32.5,31.8,29.1,27.8
1992,27.8,29.7,35.8,37.6,35.4,34.4,32.3,32.3,32.2,30.3,29.2,26.3
1993,27.9,30.9,34.4,37.4,35.3,33.3,33.7,31.9,32.6,32.5,30.3,29.5
1994,31,32.8,35.3,38.2,35.4,33,31.8,31.4,32.4,31.7,29.7,27.8
1995,29,31.1,36.3,39.9,37.1,33.3,32.6,32.1,32.1,32.2,29.6,27.6
1996,28.9,30.6,35.4,36,34.6,32.7,32.4,31.5,32.3,31.7,30.3,28.7
1997,28.5,30.7,34.8,35.1,36.9,33.3,32.4,32.4,31.6,31.8,30.5,28.8
1998,28.9,31.9,35.3,38.2,36.8,34.5,32.9,32.4,33.6,33.8,31.5,30
1999,30,33.2,36.1,37.3,33,33.4,32.3,31.5,31.6,31.9,29.7,28
2000,29.5,30.7,33.7,37.3,32.9,33,32,32.3,31.4,32.1,30.2,28.5
2001,29.5,31.9,35,38.9,33.1,31.7,31.3,31.7,31.8,30.7,28.4,28.2
2002,27.7,31.6,35,37.1,33.4,32.7,31.6,31,31.5,31.4,29.3,27.6
2003,27.6,30.5,33.1,37.1,35.3,31.9,32.2,31.5,32,31.6,30.3,28.1
2004,28.1,31,36.2,36.5,34.4,32.4,31.2,31.6,30.6,31.4,30,27.1
2005,28.3,32.4,35,37.7,35.4,33,32.6,30.7,32.2,31.3,29.8,27.7
2006,28.7,32.6,36,36.9,34.2,32.6,31.7,31.5,31.9,31.8,30.3,28.1
2007,27.9,30.5,35,37.1,34,32.6,31.5,31.7,32,31.1,29,28
2008,30,30.6,35,37.7,34.1,32.4,32.3,31.5,32.3,31.6,30.1,27.9
2009,28.6,33.1,35.3,37.5,35.3,32.6,32.5,32.4,33.2,32.6,30.7,28.5
