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