1901,29.5,32.8,35,36.3,32.9,31.7,31.3,31,30.7,30.4,29.2,28
1902,28.3,32.1,35.1,35.3,33.5,31.6,31.1,30.6,30.3,30,29,28.4
1903,29,31.4,35.4,36.6,33.5,30.7,31.1,30,30.3,30.2,28.1,25.5
1904,26.8,30.9,34.3,34.8,33,31.5,30.8,30.7,31,30.7,28.2,26.5
1905,29.3,32.6,34.3,35.9,33.2,31.6,31.1,30.7,31.2,30.6,29.4,29.6
1906,30.2,32.8,34.9,36.5,34.2,31.9,31.5,30.6,31.5,30.2,28.5,27.8
1907,28.7,32,33.7,35.4,32.8,31,30.6,30.6,30.4,30.4,29.3,26.3
1908,28.6,31.9,34.7,36.3,33.1,31.5,30.8,30.6,30.7,30.3,27.9,27.4
1909,28.5,32.1,35.2,35.6,32.6,31.3,30.8,30.5,31.2,30.9,28.8,26.9
1910,29.2,31.4,34,35.7,33.4,30.9,30.6,30.6,30.5,30,29,26.6
1911,28.5,31.4,34.4,36.1,33.2,31.5,30.7,30.9,31,30.4,30.1,28.4
1912,29,32.1,34.7,35.9,33.6,31.7,30.4,30,30.5,29.7,27.9,27.3
1913,29,32.1,33.8,35.4,32.7,31.6,30.2,30.2,30.4,29.9,28,27
1914,28.1,32.1,34.5,36,33.2,31.1,30.7,29.8,30.4,29.4,29,28.2
1915,29.2,33,34.6,35.7,32.5,31.6,30.4,30.4,30.1,30.7,28.6,26.1
1916,27.4,31.9,35.4,35.7,33.6,31.4,31.3,30.8,31,29.5,28.4,26.6
1917,28.2,31.4,33.9,35.3,33.6,30.8,31,30.4,30.3,29.7,29.1,26.7
1918,28,30.8,33.7,34.5,32.3,31,31.5,30.4,31.5,30.4,29.5,29
1919,29.7,32.5,36,36.2,33.9,31.5,30.8,31.2,30.4,30.2,28.9,27.8
1920,27.9,31.6,34.5,35.5,33.3,31.6,31.3,30.9,30.8,30,29.5,28.3
1921,30,31.4,34.9,36.8,32.8,31.7,30.5,30.6,30.7,29.5,28.2,27.4
1922,30.4,32.8,34.7,35.5,33.7,31.6,30.6,30.5,31.2,30.4,28.2,27.3
1923,30.2,30.5,35.3,35,32.2,30.9,30.3,30,30.8,29.7,29.3,28.4
1924,30,32,36.3,35.6,33.6,31.2,30.1,30.2,30.6,29.3,29,26.4
1925,28.6,30.9,34.9,34.2,33.1,31.7,31,30.4,31,29.2,28.9,26.8
1926,29.8,31.6,34.1,36.2,34.2,31.7,31,30.6,31.2,30.4,28.9,28.3
1927,29,31.4,34.8,34.7,32.2,31.5,31.2,30.5,30.5,29.5,28.8,28.3
1928,31.3,32.4,35,35.9,33.4,30.7,30.9,30.6,30.7,29.6,28.3,28.6
1929,30.5,31.7,34.5,35,33.1,30.9,31,30.5,30.8,30.3,28.5,28.5
1930,28.7,31.5,33.7,36.2,32.3,31.4,30.8,29.7,30.7,29.8,28.9,28.8
1931,29.3,32,34.6,36.8,35.7,32.4,31.7,31.2,30.6,29,27.9,28.1
1932,27.7,31.4,34.6,36,34.9,31.8,31,30.7,30.3,29.9,29.6,26.6
1933,29.5,32,35.3,36.5,33,31.2,30.6,29.7,30.4,29.9,28,27.2
1934,28.7,31.7,34.2,35.3,34.2,31.5,30.1,30,30.3,29.5,28.4,25.3
1935,30.5,32.2,34.7,35.9,33.9,31.1,30.5,29.9,31,30.5,29.6,29.6
1936,28.5,30.4,34,36.2,33.4,30.9,29.9,30.2,30.1,28.9,31.2,31.2
1937,30.8,32.5,36.1,36.3,32.2,31,30.3,30.9,30.7,30.9,31.3,28.2
1938,29.4,31.5,34.7,34.2,31.7,30.8,29.6,29.9,30.1,29.6,26.3,27.6
1939,28.6,30.9,32.5,33.3,32.4,30.2,28.7,29,29.1,29.9,28.4,24.6
1940,27.4,30.2,33.6,36,31.8,30.6,29.4,29.9,30.3,29.6,27.7,26.6
1941,30,31.6,35.2,36.5,33.6,30.9,31.2,30.4,30.3,30.2,29.3,29.4
1942,29.1,34.9,35.2,35.4,32.5,31,30.5,30.2,30.7,31,29.1,27.7
1943,28.7,30.1,35.4,34.8,33.7,31.3,31.3,30.5,30.8,30.4,28.4,26.9
1944,29.1,32.3,35.6,36.8,33,31.2,31.1,30.9,30.7,30.4,29.4,28.3
1945,30.7,32,34.6,36.7,33.3,31.6,31.1,30.7,31.3,30,29.8,26.8
1946,28.7,30.2,35.1,34.5,32.9,33,32.6,31.3,31.2,29.7,30.6,30.7
1947,31.4,33.5,35.9,34.8,35.6,32,31,32.2,31.5,30.8,30,29.2
1948,30.1,34.1,35.6,33.8,33.5,32.8,31.5,31.5,30.8,30.3,29.3,30.2
1949,29.5,32.2,36,33.9,33.3,32.9,31.2,30.6,30.7,30.8,29.1,28.7
1950,30.2,33,34.6,35.3,34.2,31.4,31.1,31.3,30.8,29.2,28.8,25.6
1951,26.9,31.4,34.5,36.5,33.1,30.6,30.8,30.8,30.9,29.9,30,27.6
1952,29.3,33.2,33.1,35.2,34.4,31.1,30.3,30.1,29.4,29.9,29.8,27
1953,29,30.3,34.2,35.1,32.3,31.2,30.7,30.1,30.4,30.7,29,28.2
1954,30.4,32.2,33.7,36.6,32,31.8,32,30.8,30.9,29.7,29.7,27.4
1955,28.3,31.8,34.1,34.2,33.4,30.4,30.8,30,30.7,30.4,28.5,27.3
1956,29,31.9,35.2,35.6,31.8,31.3,30.7,30.4,30.6,30.4,28.9,28.3
1957,30.2,31.4,35.1,37,35.7,31.3,30.9,31.2,30.8,30.5,30.7,29.8
1958,29.6,31.9,36.5,37.6,35.7,32.1,31,31.5,31.1,30.5,29.1,27.4
1959,29.5,33.8,34.8,37.5,34.4,32.5,30.9,30.3,29.9,30.6,30.7,31.1
1960,29.5,31.4,35.7,38,34.3,32.2,30.8,30,29.8,29.4,29.9,26.6
1961,27.6,31.5,34.4,35,32.4,31.4,30.4,30.3,29.5,29.4,29,28.3
1962,27.6,30.9,34.6,36,32.7,31.7,31.1,30.9,30.7,29.7,30,28.6
1963,27.4,31.6,34.4,35.6,35.9,31.1,29.8,30.6,31.2,29.6,29.5,27.3
1964,30.7,32.1,34.9,36.2,32.4,31.7,30.5,30.9,30.4,30,28,26.9
1965,28.4,32.2,34.3,36.4,34.9,30.9,31.8,30.8,30.4,29.6,28.9,28.4
1966,29.7,32.7,35.2,37.7,33.9,31.7,31.2,29.9,30.5,30.2,29.8,29.6
1967,28.7,31.5,34.7,35.6,33.2,32.2,31.3,30.8,29.8,30,29,27.2
1968,29,31.6,34.7,34.2,32.7,31,31.6,31.2,31.5,30.4,30.5,30
1969,29.6,33.1,35.8,37.1,34.4,31.9,30.6,29.9,31.2,30.7,28.3,27.7
1970,29.4,32.3,35.9,34,32.3,31.2,30.3,30.1,30.5,29.9,28.4,27.5
1971,27.8,30.9,33.2,35.9,32.9,30.6,29.5,29.6,30.7,28.9,27.5,27.1
1972,27.7,32.1,33.5,33.1,34.1,31.8,31.3,30.2,31.2,30.5,28.8,27.4
1973,29.1,32.8,33.5,36.6,32.6,31.7,30.8,30,29.8,30.6,27.6,26.5
1974,28,31,33.6,34.1,32.5,31,31.3,30.5,30.4,30.8,28.2,27.7
1975,27.7,31.5,34.4,36.5,33.2,31.2,30.9,30,30.5,30.7,29.1,26.4
1976,28.2,32.3,33.9,34.7,31.7,31.2,31.6,29.5,31,30.1,26.5,28.1
1977,28.1,28.5,31.2,34,30,31.1,29.5,29.6,29.2,28.5,26.4,27
1978,26.7,30,34.9,36.7,33.2,32.1,31.3,31.3,31.1,31,30.8,29.4
1979,31.2,33.7,36.4,36.8,34.5,32.2,32.7,30.8,31.9,30.5,30.2,29.1
1980,30.2,33.1,35.8,37.3,35.4,31.8,31.4,30.4,30.6,29.5,29.9,27.1
1981,28.2,32.2,35.5,36,32.4,30.4,29.9,30.3,31,30.3,28.2,25.3
1982,28,32.4,35.9,34.1,33.5,30.9,31,30.6,29.9,30.7,30.3,26.7
1983,27.9,33.3,36.4,39.1,35.2,32.4,32.6,31.2,30.8,29.7,26.7,26.6
1984,28.4,32.7,35.6,36.4,33.4,30.9,30.8,30.8,30.8,29.3,30,28.6
1985,30.3,33.3,36,35.8,33.4,30.3,30.2,30.3,31.1,30.4,28.3,27.6
1986,28.7,32.7,34.3,35.5,32.7,31.8,30.5,31.6,31.2,30.4,29.2,28
1987,29.1,31.4,34.5,35.9,35.1,31.7,31.5,31.5,31.1,31.2,30.1,25.9
1988,29.4,33.3,35.9,35,32.6,30.6,30.7,30.9,31.3,29.8,27.1,27.2
1989,29.7,32.1,33.9,37.1,33.3,30.9,30.8,31.2,30.5,29.5,28.8,27
1990,29.9,31.4,34.1,36.1,31.9,31.5,30.4,32,30.9,30.4,29.3,27.8
1991,30.6,32.8,36.1,36.5,35.8,31.4,31.5,30.9,31.6,30.7,29,27.4
1992,27.9,30.5,35.6,37.7,36.7,33.7,30.8,31.5,31.1,28.2,27.7,26.4
1993,27.8,31.6,34.2,34.9,33.9,32.4,32.6,30.9,31.3,30.3,30.1,28.6
1994,31.3,33.6,33.7,35.5,32.5,30.8,29.4,29.4,30.8,30,28.3,28.6
1995,30.2,31,35.5,37.2,33.6,32.9,31,29.5,31.2,30.3,28.4,26.7
1996,29.8,29.6,35.4,35,32.3,30.7,30.1,29.9,30.3,29.3,29,27.6
1997,28.9,31.8,34.4,33.7,35.1,32.8,31.6,31,30.3,30.3,29.7,30.2
1998,30.5,33.5,37.6,37.6,35.5,33.6,31.6,32.4,32.1,32,29.1,29.7
1999,29.7,33.2,34.6,33.3,30.6,31.4,30.8,30.6,29.7,30.1,28.7,25.8
2000,31.1,31,33.3,34.6,30.7,30.9,30,31.3,29.5,30.6,29,28.7
2001,30.8,33,33.5,37.1,30.8,30.5,29.5,30.4,30,29.3,27.3,28.1
2002,28.3,31.8,34,36.1,31.9,30.8,29.6,29.6,29.3,30,27.8,27.3
2003,26.9,31,33,35,32.8,29.6,30.7,30.2,30.3,30.3,30,27.5
2004,29,31.1,35.8,36.6,31.9,29.9,29.2,30.2,29.3,29.7,29.3,27
2005,29.6,34,34.1,36.5,34.1,31.6,31.6,29.4,29.6,30.1,29,26.4
2006,29,32.3,35.6,35.5,32,31.8,29.4,29.5,30.6,29.9,29.9,27.8
2007,28.2,31.8,34.7,35.7,30.9,31.4,30.1,30.4,30.4,29.4,27.2,28.2
2008,31.5,31,34.4,35.3,31.3,31.4,31.1,30.8,30.7,30.2,28.8,27.2
2009,28.4,33.4,34.2,35.1,32.8,31,30.9,32,31.9,31.2,30.2,28.6
