1901,30.9,31,31.6,31,31.3,30.5,30.5,30.7,30.2,31.3,31.2,31
1902,30.3,30.8,31.1,31.2,31.2,30.4,30.4,30.5,30.3,31,31,31.1
1903,30.6,30.5,31.3,31.4,31.4,30.1,30.2,30.4,30.2,31.1,30.7,30.2
1904,29.9,30.1,31,30.8,31.1,30.2,30.2,30.6,30.4,31.3,30.7,30.6
1905,30.6,30.8,31.2,31.4,31,30.2,30.4,30.6,30.5,31.3,31.1,31.5
1906,30.9,30.8,31.1,31.6,31.6,30.4,30.4,30.6,30.5,31.1,30.8,30.9
1907,30.4,30.5,30.8,31.1,30.9,30.2,30.2,30.4,30.4,31.1,30.9,30.4
1908,30.3,30.4,31,31.2,31,30.2,30.2,30.3,30.3,31.2,30.6,30.8
1909,30.4,30.5,31,31,31,30.2,30.1,30.4,30.3,31.2,30.7,30.6
1910,30.5,30.3,30.7,31,31.1,30.1,30.3,30.5,30.1,31.1,30.9,30.5
1911,30.7,31.1,31.5,31.3,31.4,30.7,31,30.9,30.8,31.4,32,31.7
1912,31.2,31.4,31.9,32,31.7,30.5,30.7,30.8,30.8,31.6,31.5,31.6
1913,31.2,31.4,32,31.5,31.8,30.4,30.7,31.1,30.7,31.7,31.6,31.6
1914,31.1,31.2,31.7,31.6,32,30.4,30.7,31,31.2,32.1,32.2,32
1915,31.4,31.5,31.9,31.9,32,30.4,30.9,30.7,31.1,31.7,31.8,31.2
1916,30.6,31.1,31.7,32.1,31.4,30.5,30.3,30.8,30.9,31.8,31.6,31.2
1917,30.4,30.7,31.2,31.5,30.9,30.5,30.5,30.6,30.6,31.5,31.6,31.1
1918,30.1,29.7,31.4,31.2,31,30,30.8,30.9,30.8,31.4,31.7,31.1
1919,31.5,31.4,31.8,31.9,31.9,30.8,30.7,31.3,31.1,31.9,31.6,31.4
1920,31,30.7,31.9,31.7,31.6,30.8,30.9,30.7,30.8,31.5,31.8,30.8
1921,31.2,30.7,31.6,31.7,31.3,30.2,30.6,30.9,30.8,31.4,31.3,31.5
1922,31.1,30.8,31.1,30.9,31.1,30.4,30.5,30.6,30.8,31.5,31.6,31.4
1923,30.8,30.7,31.4,31.6,31.3,30.6,30.2,30.6,30.3,31.5,31.5,31.7
1924,30.9,30.7,31.3,31.6,31.2,30.3,30.5,31.2,30.2,30.8,30.9,30.9
1925,30.8,30.3,31.2,31.5,31.8,30.8,30.8,31.2,31.2,31.4,31.7,31.4
1926,30.8,31.4,32.2,32.3,32.1,30.9,31,31.2,30.8,31.6,31.8,31.3
1927,30.7,30.9,31.7,31.3,31.4,30.6,30.7,31.1,31.1,31.5,31.5,31.6
1928,31.3,30.7,31.3,31.4,31.7,30.8,31.1,31,31.1,31.6,31.7,31.8
1929,31.2,30.4,31.3,31.9,31.6,30.4,31.2,31,31,31.5,31.3,31.4
1930,31.3,31.2,31.3,32,31.8,30.7,31.2,31.6,30.7,32.1,31.4,31.5
1931,31,31.8,32,32.1,31.9,30.7,30.6,31.5,31,31.8,31.7,30.9
1932,31,30.8,31.3,31.3,31.6,30.1,30.7,30.7,30.7,31.7,30.9,31.5
1933,30.9,31,31.5,31.6,32,30.8,30.6,31.2,30.9,31.5,31.2,30.9
1934,30.4,30.1,30.8,31,31.8,30.2,30.9,30.9,30.9,31.4,31.2,31.3
1935,30.9,30.9,31.6,31.6,31.2,30.2,30.9,30.6,30.9,31.5,31,31.1
1936,30.6,30.9,31.1,31.5,31.4,30.3,30.5,30.4,30.9,31.2,31.4,31.5
1937,31,31,31.5,31.5,31.1,30.3,30.6,31.3,30.9,31.3,31.3,31.1
1938,31.1,31.3,31,31.4,31.2,30.7,30.7,30.3,30.6,31.6,31,31.5
1939,31.1,30.3,30.9,31.1,31.3,29.8,30.3,30.2,30,30.7,30.8,30.2
1940,29.7,30.6,31,31.5,31.1,30.3,30.4,30.1,30.3,31.3,31,31.3
1941,31.2,30.7,31.1,31.9,31.3,30.7,30.6,30.5,30.5,31.4,31.3,31.5
1942,30.6,30.4,30.8,30.7,30.6,30.1,30,30.3,30.1,31,30.9,30.7
1943,30.1,30.7,30.9,31,31.2,30.2,30.3,30.7,30.4,31.1,30.8,30.6
1944,30.6,30.6,31.1,31.2,31.2,30.3,30.1,30.3,30.3,31,31,30.5
1945,30.3,30.4,30.7,31,31.1,30.1,30.1,30.3,30.3,30.9,31.2,30.9
1946,30.4,30.4,31.1,30.9,30.9,30.1,30.4,30.4,30.1,31.3,31,31.2
1947,30.8,30.6,30.9,31.1,31.2,30,30.1,30,30.3,31.3,31.1,30.7
1948,31,30.7,31.7,31.8,31.7,31,30.6,31.1,31,31.8,31.5,31.5
1949,30.4,30.9,32.1,31.4,31.6,30.4,30.3,30.7,30.7,31.4,31.4,31.7
1950,31.2,31.1,31.8,31.4,31.5,30.5,30.6,30.7,30,31.3,31.6,31.3
1951,29.5,29.2,30.7,30.9,30.2,30.2,29.5,30.4,30.1,31,30.9,30.7
1952,30.2,29.8,30.1,30.6,30.7,30.1,29.7,30,30,30.7,30,30.4
1953,29.9,29.6,30.1,30.6,30.6,30,29.8,30.5,29.8,31.2,30.7,30.5
1954,29.8,30.1,30.4,30.7,30.6,29.8,29.3,30.1,30,30.6,30.1,30.5
1955,30.4,30.2,30.9,30.4,30.8,29.9,29.6,29.9,30.2,30.9,30,30.3
1956,29.4,29.8,30.3,30.6,30.6,29.6,29.6,29.7,29.8,30.6,30.7,30.4
1957,30.2,30.3,30.8,30.9,30.9,30.4,29.9,30,30.2,30.9,31,30.6
1958,30.5,30.6,31.2,31.6,30.9,30.3,30.4,30.1,30.5,30.8,30.4,31.1
1959,30.8,30.7,30.9,30.5,30.8,29.9,30.2,30.2,30.5,31.3,30.6,31.1
1960,30.2,30.5,31.8,31.1,31.6,30.7,30.9,31.5,31.3,32.3,31,31.2
1961,30.2,30.2,30.9,31.2,31.9,30.2,30.5,31.1,30.8,30.6,31.6,31.1
1962,30.1,30.4,31.1,31.5,32.1,30.5,30.9,30.4,30.8,31.2,31,31.1
1963,30.2,30.4,30.6,32,32.1,30.6,30.9,30.8,30.9,30.7,30.9,31.3
1964,31,30.5,30.8,31.3,31.1,30,29.9,30.5,30.1,30.7,30.6,30.6
1965,30.2,30.7,30.7,30.7,31,30.5,30.4,29.8,29.9,30.7,31,30.4
1966,30.4,30.9,30.6,31.3,30.9,30,29.9,30,30.2,30.8,30.8,30.5
1967,29.3,29.8,31,31,30.9,30,30.6,30.4,30.4,31,30.9,30.8
1968,30.1,30.9,31.2,31.2,30.9,30.2,29.9,30.2,30,30.9,31.7,31
1969,30.7,30.9,31.4,32,31.2,29.8,31,29.9,30.7,30.8,30.2,30.7
1970,30.3,31.1,31.4,30.8,30.9,30.6,30,30.7,29.9,30.4,30.5,30.7
1971,29.3,29.4,29.8,31.1,30.3,29.5,28.5,29.2,30.4,30.7,30.1,29.8
1972,30.5,30.2,31.1,30.5,31.2,29.9,30.7,30.7,30,31.2,30.7,31
1973,30.9,30.7,30.7,30.9,30.7,30.2,30.1,30.4,30,31.2,30.9,30.1
1974,29.9,29.6,31.2,30.8,30.9,30.1,30.4,30.6,29.9,31,30.4,30.5
1975,30.2,29.6,30.3,30.6,30.3,29.6,29.4,30.5,29.7,31,30.4,29.6
1976,29.7,30.2,30.7,30.8,30.5,30,29.8,30.2,29.8,31.2,30.7,30.8
1977,30.6,29.9,31,31.5,31.5,30.7,30.9,30.1,30.2,31.2,31.2,31.4
1978,30.9,30.9,31.1,31.4,31.3,29.5,29.6,30.2,29.9,31.1,31.2,31.3
1979,30.9,31.1,31.8,30.7,31.5,30.2,29.9,30.6,30.4,31.4,30.5,31.5
1980,30.7,30.3,30.7,30.8,31.2,30,29.8,29.2,29.5,31.7,30,30.6
1981,29.7,29.8,31.2,30.1,30.3,30.2,30.5,31.7,30.5,31.3,30.7,31.3
1982,30.8,30.8,31.3,31.3,31.3,30.2,29.5,30.3,30.4,31.4,31.3,31.4
1983,31.4,31.5,32.5,33.1,31.9,31,30.7,30.1,30.4,31.6,31.6,30.4
1984,29.8,29.4,30.3,30.7,31,29.5,29.9,31.1,30.8,31.7,31.1,30.4
1985,30.8,30,29.8,30.5,30.6,30.2,30.1,29.4,30.1,31,30.3,31.1
1986,30.1,30,30.6,30.5,31,30.5,30.6,31.1,29.5,30.3,30.3,30.7
1987,29.8,31,31.1,31.3,30.2,30.3,30,29.6,29.7,31.1,30.6,30.5
1988,30.6,30.1,30.5,30.5,31,29.4,29.4,29.8,29.6,31.3,31,30.2
1989,29.9,29.6,30,29.9,30.1,29.1,29.6,29.6,29.7,30.2,31.2,30.6
1990,30.3,31,31.5,31.1,30.9,30.5,30,30.8,30,31.2,30.9,30.7
1991,30.3,30.5,31,30.2,31,30.5,30.3,29.9,30.2,30.4,31.1,29.9
1992,30.4,30.5,31.3,31.6,30.6,29.3,29.6,29.9,30.1,30.5,29.8,30
1993,29.9,29.5,30.7,30.1,30.3,29.4,29.5,30,29.7,30.3,30.1,29.9
1994,30.1,29.8,29.8,30.8,30,29.9,30.7,29.2,29.5,30.7,30.3,30.7
1995,29.6,29.7,30.6,30.7,31.2,29.8,30.1,29.5,30.5,31.2,31.1,29.6
1996,29.6,29.6,30.9,30.6,30.7,30,30.1,29.6,30.5,30.7,30.7,30.4
1997,30.5,29.7,31,30.4,31.6,30.1,30.4,31.2,30.6,31.3,31.3,31.1
1998,31.2,31.2,31.8,31.4,32.7,30.7,30.3,30.5,30.6,31.3,30.5,30.3
1999,30,29.9,30.5,30.5,30.5,30.4,30.1,30.1,30.2,30.6,30.9,29.8
2000,30.3,29.4,30.6,30.5,31,29.5,30.6,30.3,30.2,31.5,30.9,31.3
2001,29.8,30.4,30.6,30.5,31.3,30.3,31.1,30.7,30.4,31.1,30.9,31.2
2002,30.7,30.8,32,31.3,32.3,30.9,31,31,30.8,32.1,31.5,31.7
2003,30.9,30.2,31.5,31.3,32.1,31,30,31,30.8,31.1,31.3,30.9
2004,30.8,30.9,31.5,31.3,32.1,31,29.8,30.9,30.7,31.3,31.9,31.4
2005,31.1,31.3,31.5,31.5,31.3,30.8,30.9,31.3,30.6,31.3,30.8,30.1
2006,30.6,30.9,31.2,31.2,30.4,29.6,30.5,30.8,30.4,31.8,31.1,31.1
2007,29.9,30.9,30.9,30.9,31.5,30.2,30.2,30.7,30.6,30.8,31.1,30.8
2008,30.8,30.5,30.2,30.4,30.9,30.3,29.7,30.5,30.2,31.4,31.3,30.8
2009,30.1,30.2,30.5,30.8,30.9,31.7,30.7,29.9,31.1,31.7,31.3,31
