1901,30.7,31,31.2,30.9,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1902,30.7,31,31.2,30.9,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1903,30.7,31,31.2,30.9,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1904,30.7,31,31.2,30.9,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1905,30.7,31,31.2,30.9,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1906,30.7,31,31.2,30.9,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1907,30.7,31,31.2,30.9,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1908,30.7,31,31.2,30.9,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1909,30.7,31,31.2,30.9,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1910,30.7,31,31.3,30.6,29.8,28,27.1,27.5,28,28.5,29.4,30.6
1911,30.6,30.9,30.9,30.6,29.9,28.4,27.4,27.8,28.3,28.8,29.8,31.1
1912,31,31.4,31.6,31.3,30,28.1,27.2,27.6,28.5,29,29.5,31
1913,30.9,31,31.3,30.9,30.1,28.3,27.5,28,28.6,29.4,30.2,31.1
1914,31,31.2,31.3,30.9,29.9,28.2,27.4,27.9,28.5,29,29.7,31.2
1915,31,31.6,31.4,31.2,30.2,28.4,27.5,27.9,28.4,28.8,29.5,31
1916,30.7,31.2,31.3,31.2,30.1,28,27,27.5,28.5,28.7,29.4,31.1
1917,30.9,31.3,31.5,31.1,30.3,28.7,27.4,27.7,28.4,28.7,29.8,30.7
1918,30.7,30.9,31.3,30.9,29.5,29.1,27.9,28.4,28.6,28.8,29.6,30.9
1919,30.9,31.3,31.2,31.1,30.4,28.1,27.1,27.6,28.4,28.7,29.6,30.8
1920,30.7,31,31.3,30.7,29.8,28,26.8,27.6,28.3,28.8,29.5,30.5
1921,30.4,30.8,31,30.6,30,27.7,26.7,27.5,28.1,28.6,29.6,30.8
1922,30.7,31,31.2,30.9,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1923,30.6,31,31.2,30.8,30.1,28.5,27.3,27.9,28.6,28.9,29.8,30.9
1924,30.8,31,31.3,30.9,30.2,28.4,27.5,27.9,28.5,28.9,29.7,31
1925,30.6,30.8,31,30.8,30.2,28.4,27.5,27.8,28.6,29,29.8,31
1926,30.7,31,31.3,31,30.3,28.6,27.5,27.9,28.6,29,29.8,30.9
1927,30.6,31,31.2,30.9,30.2,28.5,27.4,27.9,28.6,29,29.8,31.1
1928,30.7,31,31.2,30.9,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1929,30.7,31,31.2,30.9,30.2,28.5,27.4,27.9,28.6,29,29.8,31
1930,30.7,31,31.3,30.9,30.2,28.5,27.5,27.9,28.6,29,29.9,31.1
1931,30.8,31.1,31.3,31,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1932,30.7,31,31.2,31,30.2,28.5,27.5,27.9,28.6,28.9,29.8,31
1933,30.7,31,31.2,30.9,30.2,28.5,27.5,27.9,28.6,28.9,29.7,30.9
1934,30.6,30.9,31.1,30.9,30.1,28.5,27.4,27.9,28.7,28.9,29.8,31
1935,30.7,30.9,31.2,30.9,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1936,30.7,31.1,31.3,31,30.2,28.5,27.5,27.9,28.6,29,29.9,31
1937,30.7,31,31.2,30.9,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1938,30.7,31,31.2,30.9,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1939,30.7,31,31.2,30.9,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1940,30.7,31,31.2,30.9,30.2,28.5,27.5,27.9,28.6,29,29.8,31
1941,30.6,31,31.2,30.9,30.2,28.4,27.6,27.9,28.5,29.3,30.2,31.4
1942,30.7,30.9,31.2,30.9,30.1,28.4,27.6,27.9,28.5,29.1,30,31
1943,33.2,31.2,34.3,32.8,30.2,28.6,28.2,28,29,30.5,30,32.6
1944,32.4,32.6,32.1,32.1,31.5,29.5,30.4,29.8,30.9,30.2,30.7,32.1
1945,32.2,32.5,32.3,30.8,30.1,28.8,27.9,29.1,30.5,30.4,31.5,31.6
1946,30.6,31.9,32.2,32,30.8,29.1,27.8,28.5,29.3,29.8,30.8,31.1
1947,30.7,31,31.3,30.8,30.1,28.5,27.4,27.9,28.6,28.9,29.8,30.9
1948,30.9,31.5,31.2,30.9,31.6,29.1,27.5,28,29,29.1,30,30.7
1949,30.8,31.5,32.2,31.1,30,28.1,26.7,27.4,27.6,27.9,29.6,29.9
1950,30.3,30.2,30.4,29.9,29.3,26.9,26.5,27.1,28,28.4,29.3,30.4
1951,30,30,30.4,30.5,30.9,30.2,29.2,29.2,29.4,29.9,30.5,31
1952,31,31,31.1,30.4,30.1,27.4,26.4,27.2,28.1,28.9,29.4,30.8
1953,30.8,31.1,31.5,31.8,31.4,28.9,27.7,28.8,29.6,28.9,30.3,30.1
1954,30.5,30.6,30.5,30.2,28.5,26.7,26.1,26.6,27.5,27.9,29,30.1
1955,30.2,30.8,30.6,29.8,29.3,27.4,26.9,26.8,27.9,28.1,29.7,30.4
1956,29.6,30.7,30.5,29.9,29.3,27.5,26.9,27.6,28.4,28.5,29.2,29.9
1957,30,30.2,31.2,31.5,32.4,30.4,29.4,29.3,29.9,29.9,30.6,31.4
1958,31.4,31.3,31.3,31,30.2,28.3,27.5,27.5,27.9,29.1,29.5,30.5
1959,30.1,31.4,31.5,31.3,30.7,27.9,27.9,28.1,29.2,29.6,30,31.1
1960,30.6,30.9,31.1,31,30,28,27.7,27.9,28.8,28.9,29.9,31.4
1961,31.1,30.8,31.1,30.2,30.9,27.9,26.9,28,28.5,29.2,29.5,31.2
1962,30.8,30.9,30.6,30.7,29.9,27.1,27.1,27.9,28.9,28.9,29.9,31
1963,30.5,30.4,31,30.4,30.7,28.3,27.7,28.7,29.2,29.5,29.8,31.4
1964,31.1,30.8,30.9,30.4,29.4,27.5,26.5,26.9,27.6,28.3,29.6,29.9
1965,30.2,30.8,30.9,31.4,31.7,29.9,28.9,29.3,28.8,29.4,30.1,31.4
1966,31.2,31.3,31.6,31.2,30.2,28,27.4,27.8,28.5,29.1,29.7,30.1
1967,30.5,30.4,31,31.7,30.5,26.9,26.8,27.3,27.3,28.4,28.3,29.9
1968,30.2,30.1,30.5,30.1,28.2,26.7,27,28.2,28.8,29.2,29.9,30.9
1969,30.8,31.5,32.3,32.1,32.3,30.3,28.3,28.5,29.3,29.5,30.3,31.3
1970,30.9,30.8,31.7,31.7,30,28.1,26.7,27.2,28.3,29,29.3,30.7
1971,30.3,30.4,30.3,30.5,29.4,27.9,27.5,27.6,27.9,28.7,29.5,30.9
1972,30.9,31.6,31.2,31.4,31.3,30.5,30.2,29.9,29.7,30.5,31,32.5
1973,31.7,31.6,31.6,30.7,30,27.4,26.4,26.7,27.8,28,29.2,29.7
1974,30.2,30.6,30.8,31,30.8,27.7,26.5,26.7,26.6,28.5,30,30.7
1975,29.9,30.5,31.2,31.2,29.6,28,26.6,27.2,27.5,28.6,28.5,29.7
1976,29.9,30.3,30.8,30.7,30.7,29.3,29.1,29.3,29,29,30.4,31.8
1977,31.3,31.4,31.7,31.4,30.7,28.9,28.1,27.8,28.6,29.2,30.4,32
1978,30.9,31.8,30.7,30.3,29.9,28.1,27.6,27.7,28.8,29,30.8,31.4
1979,31.1,31.2,31.6,31,30,28.9,28,28.4,28.8,29.2,29.8,30.8
1980,30.9,30.5,31.3,31.7,30.6,28.8,28.2,27.6,28.1,28.7,29.5,30.4
1981,30.2,30.7,30.8,30.4,29.5,27.6,26.7,26.7,28.7,29,28.2,30.6
1982,31.2,31.3,32.1,31.1,30.9,29.3,28.7,28.3,29.3,31.1,32.1,33.6
1983,31.9,32.4,32,31.9,31.8,31.7,30.5,28.5,29.4,29.4,30.6,31.1
1984,30.1,30.6,30.6,30.3,29.1,28.6,27.3,28.4,28.9,29.6,29.2,31.2
1985,29.7,30.6,31.4,29.9,28.4,28.7,26.5,26.9,27.8,28.4,29,30.6
1986,30.9,31.2,31.1,31,29.3,27.3,26.9,28,28.4,28.7,29.5,31.5
1987,31.8,32.3,31.8,31.9,30.7,29.4,28.7,28.6,29.4,29.3,30.9,31.8
1988,30.8,31.4,30.6,30.2,30.2,28.2,26.4,26.9,28.7,28,29.7,29.9
1989,30.2,30.5,31.8,30.5,28.4,27.3,26.5,27.6,28,28.8,29.8,30.5
1990,30.6,30.7,31,30.4,30.2,28.6,27.5,27.4,29.1,28.9,30.8,31.6
1991,30.3,31.2,31.6,31,30.9,29.2,27.4,26.8,28.6,29.1,29.7,31.1
1992,31.2,30.9,31.5,31.5,31.7,28.8,27,27.3,27.9,29,29.4,30.3
1993,30.4,30.7,30.8,31,30.8,28.9,28,28.4,29,29.4,29.2,31
1994,30.4,30.9,30.1,30.2,29.6,28.2,26.8,27.2,28.8,29.1,30.2,31.4
1995,31,31,30.8,30.8,30.2,29.5,28,27.9,28.3,28.8,28.9,29.7
1996,29.5,30,31,29.3,29,26.1,26.2,26.9,28.3,28.1,29.5,30
1997,30,30.3,30.7,31.2,32.6,30.7,30.7,30.5,29.8,31,32.1,32.9
1998,31.8,31.5,31.9,32.1,31.7,29.9,28.7,28.1,28.5,29,30.3,30.4
1999,29.9,30.2,31,30.2,29.3,27.4,26.9,26.9,27.7,28.3,28.8,29.9
2000,29.6,29.7,30,30,29.3,26.9,26.5,28.3,27.8,29.6,28.6,30.1
2001,32.5,32.6,30.4,30.3,28.6,26.3,26.7,27.2,27.4,27.8,28.9,30.3
2002,30,30.9,31.5,31.8,30.9,27.5,26.8,27.4,28,28.9,30.8,31.3
2003,30.8,30.9,31.5,30.2,29.3,27.4,26.9,27.7,28.5,29.4,29.7,30.7
2004,30.2,31.2,31.3,30.2,28.7,26.4,26.5,26.8,28.1,29.8,29.3,32.2
2005,30.4,30.6,30.1,30.5,29.1,27.1,26.9,27.1,27.2,27.6,27.6,29
2006,30.3,29.8,30.9,29.7,29.2,28.7,27.4,27.8,28.6,29.1,30,30.8
2007,31.2,31.1,30.8,30.7,29,26,26.4,26.1,26.7,26.8,28.5,29.2
2008,30.1,30.4,30.9,30,28.8,27.5,27.7,28,28.7,28.6,29.1,30.1
2009,30.2,30.7,30.7,31.8,30.2,28.6,28.8,28.2,28.8,29.1,29.5,31.1
