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