1901,32.7,31.3,30.8,29,26.7,23.5,23.4,26.7,28.4,31.5,31,30.5
1902,31.1,30.5,29.5,29.6,26,23.3,24.7,26.3,30.7,29.8,31.6,32.2
1903,32,31.1,30.7,30.1,28,23.5,24.1,26.6,27.5,30.6,31.5,30.8
1904,30.3,29.2,28.4,28.3,25.7,24.4,23.2,25.9,27.9,31.2,32.4,30.1
1905,31.9,30.3,28.5,28.1,25.6,23.8,22.8,26.5,30.2,33,32,32.2
1906,32.5,29.1,29.1,27.5,26.3,23.5,23.1,25.1,29,29.9,29.8,30.5
1907,30.6,29.5,29.2,27.3,25.8,22.9,21.6,24.3,28.6,30.3,30.8,29.8
1908,30.7,29.7,29.2,27.3,25.3,24.6,23.5,27.1,30.6,32.2,30.9,31.1
1909,30.8,29.6,28.4,26.1,25.7,22.5,23.8,26.7,28.9,31,31,31.5
1910,30.8,29.9,29,27.3,24.7,23.1,23.2,26.3,28.8,30,29.4,30.9
1911,30.3,29.5,28,26.7,24.9,21.6,22.3,25.3,28,32.1,31.9,33.5
1912,31.4,31,29,29.4,28,22.7,22.7,25.2,28.4,30.6,33.9,31.8
1913,32.5,31.1,29.2,28.5,26.2,23,24.2,26.5,29.4,31.5,31.3,33.5
1914,32.8,30,29.9,29.6,26.6,24.1,23,25,31.1,32.3,31.8,31.1
1915,31.3,29.4,28.2,28.3,24.8,22.9,24.2,25.8,28.8,31.2,31.8,31.6
1916,31.1,31.8,30.1,27.7,25.2,23.9,24.3,25.2,29.5,32.6,31.1,30.6
1917,30.5,30.4,29.4,27.9,26.6,24.3,23.7,25.3,28.8,32.5,32.1,29.6
1918,29.2,29.5,28.6,25.9,24.2,22.6,23.9,23.6,30.3,32.4,31.3,31.1
1919,31.3,29.8,29,28.8,24.3,23.6,24.1,25.5,29.1,31.4,31.2,31.1
1920,31.9,30.2,28.2,26.3,25.7,22.8,23.6,25.5,30.4,30.8,32.2,31.6
1921,30.8,29.5,29.7,27.3,24.9,24.3,22.2,24.5,28.2,31.8,30.6,30.4
1922,32.3,30.8,31.5,28.8,25.5,25,24.3,27.6,29.4,30.5,31.9,32.2
1923,30.9,29.6,29.1,27.2,25.7,24.2,24,26.1,30.7,33.2,33.6,32.3
1924,33.6,29.9,29.5,27.2,26.5,23.2,22.8,24.9,29.4,30.6,31.1,29.4
1925,29.5,29.5,28.3,27.3,24.6,22.7,21.8,25.2,27,30.5,32.8,34
1926,32.6,32.1,28.7,27.3,25.7,22.1,21.2,25,29.3,31.9,31.8,31.6
1927,32.9,31.3,29.9,29.1,25.8,22.1,22.8,25.2,29.4,31.3,31.4,32.4
1928,31.5,32.4,31.1,28.6,24.5,24.5,22.7,24.7,30,33,33.3,32
1929,30.8,30.5,27.8,27.6,26.4,23.8,23.5,23.9,30.2,32.9,32.4,29.9
1930,31,31.2,29.4,26.9,23.8,21.9,22.5,24.5,28.4,32.3,33.6,31.7
1931,32,32.5,31.3,28.9,28,22.7,23.9,27.3,29.8,31.8,30.1,32.5
1932,33.4,32.1,29.4,27.8,25.7,22.3,22.5,24.4,30,32.3,33.7,30.8
1933,30.4,31.8,32.3,28.8,26.2,23.4,24.1,25.4,27.8,33,30.4,30.1
1934,30.9,30.4,29.9,29.2,27.3,23.4,24.2,26.4,27.7,32.1,31.1,30
1935,30.6,29.3,30,27.9,25.3,21.3,23.8,23.2,29.8,32.6,31,31.5
1936,31.4,30.6,28.5,27.1,25.1,23,23.1,25,27.8,31.4,31.3,31.4
1937,32.2,29.4,29.5,28.3,26.9,24.6,22.4,25,29.1,31.7,33,30.3
1938,31.2,30.2,30,30.4,27.4,23.3,23.3,25.8,29.3,32.5,30.3,29.9
1939,30.6,29.4,27.5,26.9,25.7,21.4,22.5,24.7,26.6,30.6,30.1,30.3
1940,32.1,30.3,29.1,27.9,25.6,23,23,25.8,29.8,30.1,32.1,33.9
1941,29.4,30.1,30.2,30,27.8,24,24.2,26.3,29.7,32.9,34.2,31.9
1942,32.8,33.5,30.9,28.7,26.3,25.4,23,26.6,29.9,28.9,32.2,31.1
1943,31.2,30.1,28.8,27.1,25.3,22.9,24.2,24.8,28.6,33.6,30.8,30.2
1944,32.1,28.4,29,29.4,25.2,23.2,24.9,27.9,29.5,32.2,32.6,33.7
1945,30.7,30.7,28.9,28.8,24.7,22.5,24.1,25.3,29.3,32.2,31,32.7
1946,29.2,29.9,30.4,29.1,26.6,23.5,24.4,25.4,30.9,33.1,32.2,33.7
1947,33.1,33,30.2,30.7,26.1,24.3,23.5,27.3,28.6,32.2,33.6,30
1948,30.6,29.5,28.3,28.1,26.6,24.5,24,26.4,28.7,31.3,30,34.1
1949,33,30.8,28.6,29.6,26.3,23.3,24.1,27.1,31.4,32.7,32,30.4
1950,31.4,31.9,31.1,29.4,25.6,24.8,24.6,25.3,30.4,31.4,32.6,30.8
1951,29.4,31.3,29.9,27.8,25.3,22.1,22.6,25.3,29.5,30.9,30.6,31.1
1952,30.5,29,30.9,29.2,25.7,23.4,23.8,27.5,29.4,31.3,29.5,31
1953,30,29.4,27.5,27.6,25.4,22.5,21.9,26,26.4,31.8,30.7,31
1954,30.2,30.2,29.4,28.2,26.8,22,23.6,25.8,29.7,33.7,30,29
1955,29.7,28.7,27.5,27.3,24.9,22.5,23.8,26.4,28.4,30.7,31.6,30.4
1956,30.6,29.9,28.7,27.3,25.9,23.6,24,28,28,32.8,29.9,29.8
1957,31.8,30.9,29.3,30.3,26.6,24,25.8,26.4,30.4,31.3,32.9,30.9
1958,29.9,29.3,29.9,30.2,28.3,23.4,23.5,24.9,29.5,30.9,32.7,30
1959,30.9,30.5,30.5,30.2,27.9,24.6,24.1,25.7,28.6,33.1,31.8,30.9
1960,32.8,30.4,30.5,28.5,25.9,23.1,22.7,27.6,29.2,32.9,29.4,31.1
1961,29.7,28.9,27.6,27.9,27.2,22.6,22.4,23.8,30.1,32.7,30.1,30.6
1962,30.4,30.8,30.3,28.1,24.2,25.9,23.5,26.5,31.1,33.4,30.5,29.2
1963,29.8,28.6,29,26.8,24.3,22.5,23.1,26.2,30.5,31.6,31.6,30.5
1964,31.5,31.3,32.7,29.1,25.6,22.6,21.6,24.9,29.8,31.3,31.2,29
1965,30.6,32.7,31.2,28.3,25.6,22.2,23.6,26.5,28.3,29.9,30.8,34.1
1966,33.2,28.8,28.6,27.2,26.1,22.6,24.1,26.2,28,31.4,32.2,30.2
1967,29.9,28,28.5,27.4,25.2,23.1,22,24.6,29,31.4,30.9,31.3
1968,33.5,30.9,29.1,27.5,25.3,21.2,24.6,27.2,29.2,33.1,28.6,31.2
1969,32.7,32.1,27.8,27.9,24.9,24.3,23.5,25.3,29.5,29.8,31.4,28.5
1970,33.5,30.8,32,28.8,28,23.6,24.7,27.2,31.5,32,31.7,32.4
1971,28.9,29.5,31.8,30,25.3,23.3,24,27.2,29.4,30.7,29.1,31.5
1972,28.4,29.4,28,27.2,25,22.4,23.6,26.4,30.7,31.9,31.8,35.1
1973,34.7,30.2,32.5,27.1,27.1,22.5,23.6,25.6,31.2,30,29.9,27.7
1974,29.2,28.2,27.5,25,24.5,23.3,22.6,26.3,28.2,32.4,29.2,28.5
1975,30.3,28.2,26.6,26.8,25.7,22.5,24.5,24.9,30.3,30.6,33,28.8
1976,29.8,28.9,27,25.9,22.7,22.2,23.8,24.9,29.3,29.3,31.4,31.5
1977,33.1,28.7,26.9,27.6,26.4,24.2,23.3,25.2,29.3,33.1,33.1,29.7
1978,28.5,28.5,28.2,26.4,25.3,21.7,22.5,29,29.7,30.6,30.4,29.5
1979,30.7,31.5,29.7,30,26.2,22.7,22.8,27.1,30.3,31.4,30.1,29.7
1980,31,30.4,28.7,28.7,27.1,22.8,22.6,25.6,28.2,32.3,30.7,31.2
1981,29.9,28.2,28.6,27.8,24.6,23,24,26.7,28.7,28.6,33.1,32.2
1982,31.8,31.8,31.8,28.9,25.5,24.1,23.1,26.2,28.8,29,31.1,33.5
1983,34.2,33.5,31.7,29.5,27,24.7,23.9,24.7,31.8,30.6,33.3,31.3
1984,33.8,32,30.7,27.9,26.9,22.5,23.4,26,30.9,31.7,30.1,32
1985,30.7,29.4,31,29.3,26.2,23.7,23.9,26.1,29.4,31.7,32.7,31
1986,31.4,31.1,31.1,27.5,26.4,23.2,24,27.5,29.2,30.6,31.2,31.1
1987,32.6,33.5,32.9,31.4,28.9,23.5,23.3,26,30,31.1,33.8,30.6
1988,32.9,29.6,29,28.4,25.8,23.7,24.3,26.7,29.9,30.9,31.2,30.2
1989,31.8,28.7,30.4,26.8,26.7,23.8,23.9,27.4,29.8,30.2,30.5,31.7
1990,30,29.5,31.6,28.5,26.1,25.4,25.7,25.9,28.8,32.7,33.6,32.4
1991,30.9,31.2,29.2,27.5,26.7,24.2,24,27.5,31.4,32.8,31.6,30.6
1992,34.1,34.9,32.3,30.9,27.8,24.8,24,25.4,31.9,32.3,30.9,32.3
1993,31.1,29,29.4,28.9,28.9,24.4,23.5,25.5,30.6,32.5,30.1,30.8
1994,29.8,29.5,32.2,30,27.2,23.3,22.8,25.6,30.7,29.9,31.6,33.4
1995,33.3,32.1,30.9,28.9,24.7,23.1,24.2,27.3,31.1,33.9,33,30.9
1996,29.9,29,28.9,27.1,24.9,23.4,23.2,26.7,31,33.8,32,31.5
1997,30.6,30,28.9,27.8,25,25.5,23.2,27.8,28.8,30.2,33.3,33.7
1998,30.7,32.1,32.8,30.9,28.4,26.1,24.6,25.9,30.4,31.7,31.8,29.3
1999,30.7,30.7,30.6,29.6,27.5,25.1,23.3,26.2,29.2,30.9,32.6,31.7
2000,30,29.7,28.9,27.3,24.9,23,23.9,26.1,30.3,32.9,31,31.8
2001,34,29.6,29,29.2,26.7,23.1,22.6,28.5,30.5,32.1,30.2,30.9
2002,33.3,32.9,30.6,30.8,27.1,23.8,25.4,27.5,30.3,32.6,32.9,32.7
2003,33.7,32,31,29.5,26.9,22.4,24.5,26.4,30.3,33,33.3,33.8
2004,31.4,30.9,29.4,29.7,27,23.3,24.1,28.2,30,33.7,33.4,33.4
2005,33.4,32.7,31.9,29.6,28.6,26.7,25.3,28.2,31.8,34.1,34.1,31
2006,31.4,30.5,29,28,25.4,23.8,25.3,25.9,29.7,33.4,31.8,32.4
2007,31.6,32.7,31.6,29.3,26.7,24.6,23.9,27.2,31.4,30.3,31.4,30.4
2008,30.9,31.6,30,28.9,27.5,25.3,24.8,28.3,31.6,33.3,32.1,31.9
2009,33.4,31.7,30.3,29.4,27,24.8,23.5,29.1,31.4,32.7,31.7,32.9
