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