1901,30.6,30.9,30.8,30.9,30.8,30.5,31.1,32.5,32.5,31.9,30.9,30.5
1902,30.5,30.4,30.8,30.8,30.8,30.4,31.4,32.3,32.5,31.8,31.2,30.7
1903,30.8,31.3,30.8,30.5,30.3,30.2,31,32,32.4,31.6,30.7,30
1904,30.2,30.3,30.4,30.5,30.2,30.5,30.9,32.2,32.2,31.6,31.1,30.5
1905,30.5,30.9,30.5,30.8,30.7,30.7,31.3,32.2,32.2,31.9,31.1,30.4
1906,30.6,30.8,30.8,30.9,30.6,30.1,31,32.1,32.4,31.4,31.1,30.1
1907,30.4,30.1,30.9,30.5,30.5,30.4,30.9,32.2,32.4,31.7,31.1,30.6
1908,30.7,30.5,30.8,30.8,30.7,30.7,30.9,32,32.1,31.3,30.8,30.3
1909,30.3,30.3,30.8,30.4,30.7,30,30.8,31.9,32.3,31.7,30.8,30.3
1910,30,30.2,30,30.6,30.2,30.6,31,32.1,32.3,31.4,31.1,30.2
1911,30.1,31,30.3,30.9,30.5,30.3,31.3,32.3,32.6,32.1,31.2,31.1
1912,31.2,31.1,31.4,31.2,30.9,30.9,31,32.4,32.2,31.7,30.7,30.3
1913,30.5,30.9,30.8,30.5,30.2,30.4,31.3,31.9,32,31.6,31.3,30.9
1914,30.9,31.3,31.2,30.9,31.1,30.8,31.5,32.5,32.5,31.5,31,31.1
1915,31.4,31.2,31.9,31.7,31.3,30.3,31.3,32.5,32,31.8,30.6,30.9
1916,30.9,31.1,31.2,31.4,30.4,29,29.9,31.3,32.3,31.2,30.2,30.6
1917,30.8,30.9,31.2,31,30.4,30.5,30.7,31.6,31.5,31.1,31.1,29.6
1918,30.5,30.3,31.4,30.7,29,31.9,31.4,33.5,32.6,32,31.3,31
1919,31.8,32.2,31.5,30.9,31.4,30.6,31.4,32.1,33.2,32.3,31.7,31.2
1920,31.3,31.4,31.4,31,30.8,30.2,31.4,32.1,32.9,32.7,32.1,31.6
1921,30.3,30.2,30.6,30.2,30.3,28.5,29.2,31.3,31.4,31.3,30.9,30.8
1922,31.4,31.4,31.4,31.2,30.5,30.6,31.3,32.3,32.7,31.8,31.4,31.1
1923,30.1,30.6,30.7,30.4,30.6,30.6,31.2,32.4,32.6,32,31.6,30.6
1924,31.7,31.1,31.2,31.1,30.4,30.2,31.1,32,32,31.5,31,30.2
1925,30.3,30,30.3,30.8,31.1,30.8,31.1,32.8,32.1,32.5,31.6,31.4
1926,31.7,31.5,31.1,31,30.7,30.7,31.2,32.6,32.9,32.6,32.3,31.3
1927,31.2,31,31.2,30.9,30.5,30.4,31,32.2,32.8,32.6,32,31.7
1928,31.4,31.4,30.9,30.9,31.1,30.7,31.1,32.3,32.6,32.2,32.1,31.4
1929,31.5,31.2,31.2,30.8,30.7,30.7,31.1,32.2,32.5,32.3,31.8,31.1
1930,30.9,30.9,30.9,30.9,30.6,30.7,31,32.1,32.1,32.4,31.8,31.6
1931,32,31.8,31.2,31.4,31.2,30.9,31,32.7,32.7,32.5,32.2,31.1
1932,31.2,31.6,31.1,30.8,30,30,31.3,32.6,32.8,32.5,32,31.3
1933,31.4,31,31.3,30.8,30.7,30.4,30.7,32.5,33.1,31.8,31.5,31.3
1934,30.8,30.1,31.2,30.8,30.9,30.9,31.2,31.9,32.2,32.2,31.7,31.3
1935,31.3,31.1,31.6,30.7,30.3,30.4,31.2,31.9,32.6,32.9,31.9,31.6
1936,31.2,31.6,30.8,30.8,31.3,30.5,31.2,32.3,32.9,32.5,31.8,31.4
1937,31.1,30.8,31.4,31.6,31.3,31.6,32.3,33.6,33.4,32.5,32.5,31.7
1938,31.5,31.2,31.3,31.7,31.2,30.9,32,33.1,33.4,32.3,32.1,31.4
1939,31,31,31.3,32,31.4,32,32.2,32.4,32.8,33.1,32.1,31.4
1940,31.5,32.2,32.1,31.7,31.8,31.7,32.4,32.8,33.6,33.4,32.8,31.5
1941,31.8,31.9,32.6,32.1,32.4,31.1,32.3,33.6,33.7,34,33.7,32.6
1942,32.4,32.7,32.4,32.5,32,32.1,32.7,34.3,33.8,34,33.5,31.8
1943,32.6,31.8,32,32.4,32.4,32.1,33,33.6,33.2,33.7,33.5,31.9
1944,32.1,31.3,30.9,32.5,32.5,32.5,32.6,33.5,34,33.7,32.7,32.5
1945,32.3,31.7,32.2,32.6,32.2,30.2,32.8,34,34.2,33.1,32.9,31.9
1946,32.2,32.5,32.2,30.9,30.9,31.5,31.1,32.9,33.3,33.2,31.3,30.2
1947,32.1,32.2,32.4,32.1,32,29.9,30.8,30.9,33.3,32,31.1,30
1948,31.8,30.3,30,30.1,31.2,30.8,31.1,33,33,32.4,31.5,30.5
1949,31,30.1,30.6,30.1,31.5,31.3,30.3,32.7,33.2,32.7,32.5,31.6
1950,30.4,30.4,30.1,30.8,30.4,31,31.2,33.2,33.4,32.7,32.5,29.8
1951,30.6,29.6,30.7,30.2,31.4,30.7,31,32.1,33.2,32.2,31.1,31
1952,30.4,30.1,31.1,29.7,29.7,27.5,29.4,30.5,30.7,32.1,30.8,30.2
1953,30.2,30.5,30,30.4,29.8,30.1,29.1,31.9,33.2,32,30.9,30.8
1954,30.3,30.2,30,31,29.8,31,31,33.5,33,31.3,31.1,30.4
1955,30.3,30.3,30.5,30.5,29.8,30.9,30.1,32.1,33,32.6,31.9,30.6
1956,30.2,30.3,30.9,30,29.2,29.3,30.7,30.9,33.4,31.3,31.2,30.9
1957,30.6,30.2,30.4,29.4,30.4,29.6,29,31.3,31.6,31.5,30.8,30.8
1958,30.9,30.3,30.3,29.6,28.6,29.5,31,31.3,32.6,31.2,30.5,30.4
1959,30.7,29.9,30.2,29.3,29.1,28.9,29.7,30.8,31.2,31.8,31.3,30.9
1960,30.5,30.1,30.6,29.5,28.8,28.7,29.1,29.2,31.1,30.9,30.2,30.8
1961,31.7,31,32,31.7,30.8,28.4,32.7,35.2,34.4,33.8,32.4,31.4
1962,31.2,30.3,31,31.8,30.3,30.9,28.8,33,33.9,31.8,33.5,31.6
1963,31.1,31.2,29.9,31.2,30.8,31.1,31.9,35,34.7,34.1,32.2,31.3
1964,31.4,32.4,30.4,30.9,30,30.5,31.4,33.8,33.5,31.5,31.1,31.9
1965,31.2,31.2,30.2,30.3,30.3,31.4,31.4,32.3,32.7,33.3,31.2,30.6
1966,31.4,32.1,31.2,31.2,31.9,30.8,30.4,30.6,33,32.3,31.7,30.8
1967,31.1,31,31.2,30.6,31.8,30.5,30.9,33.4,33.3,32.3,31.6,31.3
1968,30.6,31.3,31.7,30.4,30.4,31.8,32.7,32.5,32.6,33,33,31.3
1969,30.4,30.5,32.3,31.6,33.1,31.3,32.4,33.4,34.3,33.4,32.9,30.9
1970,30.9,30.3,30.6,31.5,31.4,30.8,30.7,32.6,32.6,32.6,31.8,30.5
1971,30.8,30.4,30.8,30.4,29.6,29.7,31.1,31.8,32.4,30.8,31,31.3
1972,30.2,30.4,31,30.2,31.2,31.5,31.3,31.5,31.9,32,32,31.2
1973,31,30.5,31.2,31.3,30.2,31,30.3,31.2,31.9,32.2,30.7,30.3
1974,30.4,29.2,30.2,29.9,30.1,30,31.1,31.6,32,31.5,31.8,30.5
1975,30.6,30.7,31.5,32.4,31.6,31.9,31.6,32.4,32,32.7,32.3,31.2
1976,31.1,30.3,30.7,30.6,30.4,30.1,31.6,32.4,31.4,32.4,31.2,30.5
1977,31,31.1,31,30.8,29.6,30.5,32.4,31.9,32.5,31.5,30.8,30.9
1978,30.4,31.1,30.7,31.1,30.5,30.6,32.1,31,32.3,32.2,31.3,30.5
1979,30.9,30.7,31,30.8,31.1,29.1,31.8,33.3,32.6,32.1,32.3,30.7
1980,31.3,31.9,31.2,31.3,30.9,30.2,31,32.2,31.9,31.7,30.9,31.4
1981,30.9,29.8,31.1,31.2,31.8,30.1,31.5,31.9,31.8,32.1,31.9,30.8
1982,30.8,30.6,31.1,30.7,30,30.9,30.9,32,32,31.6,31.7,30.8
1983,31.4,31.8,31.2,31.9,31.4,28.9,30.9,31.5,31.7,33,31.2,31.6
1984,30.8,30.4,30.8,30.6,30.7,30.4,30.8,31.3,32.3,33.3,30.2,31.4
1985,31.4,30.9,31.2,31.1,31.5,31.2,32.4,31.9,32.9,33,31.5,31.6
1986,30.5,30.8,30.7,31,31,30.4,30.5,31.8,31.5,31.2,30.7,30.4
1987,30.6,30.5,30.8,31.1,29.8,29.9,32.5,31.2,32.4,32.8,31.8,31.3
1988,30.9,30.9,31.7,30.9,29.8,29.8,30.6,33.3,32.9,32.6,31.2,30.5
1989,30,30.2,30.4,30.4,29.8,30.8,29.9,32.7,32,31.7,31.5,31.2
1990,30.4,30.3,31.1,31.2,30.4,29.9,29.6,32.2,31.2,32.2,31.4,30.4
1991,30.9,31.3,31.3,31.4,31,30.7,30.8,30.6,32.1,31.6,31,30.7
1992,31,30.7,30.8,31,32,31.6,28.9,31.2,31.4,31.9,30.6,30.2
1993,30,30,30.6,30.5,30.5,30.5,30.8,30.9,31.4,31.7,30.8,30.3
1994,30.9,30.8,32,31.5,31.3,31.1,31.5,32.8,32.6,32.2,31.9,30.8
1995,31.5,30.9,31.1,30.4,29.3,31,31.3,32.2,33,33,31.8,31.3
1996,30.8,31.1,31.3,31.1,31.2,29.5,31.5,33.1,32.3,32,31.4,31.2
1997,30.5,30.4,30.7,31.2,31,30.2,32.4,31.7,33.6,33.1,32,31.4
1998,32.2,32.3,32,31.3,30.9,29.3,31.1,32.3,31.9,32.3,30.6,31.2
1999,30.7,30.3,30.5,29.8,29.5,29.7,30.1,30.7,33.1,31.7,31.9,29.9
2000,30.6,30.6,30.8,31.2,30.9,30.2,29.2,32.4,32.9,32.2,32.2,31.2
2001,30.7,30.8,30.7,31.5,30,29.2,31.5,33.3,32.5,32.8,32.7,30.9
2002,31.5,31.1,31.2,31.4,31.3,30.4,30.8,33.1,33.1,32.8,31.8,31.2
2003,31.3,30.8,31.5,31.1,31.1,32,31.7,30.6,32.6,32.7,32,31.3
2004,31.5,30.8,31.4,31.8,30.7,31.1,31.9,32.8,33,32.5,31.9,30.8
2005,31.6,31.1,31.5,31.2,31.7,32,31.4,33.4,31.9,31.1,31.8,31.7
2006,31.1,31.1,31.7,31.7,30.9,31.5,32.6,32.4,33.2,32.2,31.7,30.9
2007,31.2,31.3,31.2,31.6,29.5,31.3,31,32,32.6,32.5,31.9,31.1
2008,30.6,30.5,30.9,31,30.2,29.4,32.7,33.8,32,32.4,32.1,31.1
2009,30.8,30.7,31.6,31.4,31.4,30,31.9,32.8,32.9,33,32.4,30.7
