1901,29,29.1,27.6,23.1,21.3,19.6,21.5,21.7,24,27.4,27.5,28.8
1902,28.7,30.8,28.8,25.8,22.9,22.1,22.2,19.9,24.7,25.8,29.1,29.8
1903,28.5,29.7,29.2,24.6,20.4,21.1,20.3,21.8,24.5,24.9,27.9,29
1904,28.2,28.3,28.9,25.2,19.4,18.9,21.3,21.9,24,25.2,27.9,28.1
1905,28.2,28.4,27.5,24.5,21.3,20.3,20.1,22,23.9,28.3,27.1,28.7
1906,29.8,29.6,28.5,25.2,23.1,20.4,21.3,22.5,22.8,26.8,28,28.4
1907,28.9,29.6,29.7,25.5,19.6,19.9,20,20.9,24.3,25.9,27.6,30
1908,29.3,28.6,27.5,25.2,21.4,21,21.7,20.7,23.6,25.8,27.7,29
1909,29.8,29.5,27.3,25.1,18.9,19.4,21,23.5,23.6,25.3,27.1,27.2
1910,30.2,28.6,28,26.5,20.5,21.3,19.8,23,23.2,25.2,27.8,28.3
1911,30.4,29.4,26.8,25,21.8,18.1,19.3,21.2,23,25.3,28.8,29.9
1912,30,30.8,29,25.7,22.9,21.5,19.2,22.5,21.9,25.9,28.7,29.6
1913,27.7,28.7,27.8,25.7,21.5,18.6,22.4,21.8,23.5,26.1,27.6,27.8
1914,29.8,29.1,28.9,25.6,20.8,22.7,23.5,21.8,23.9,26.5,28.2,27.9
1915,29.7,31,27.1,27.1,23.7,18,20,22.8,22.7,25.4,26.2,28.3
1916,29.2,27.3,26.4,24.8,22,19.9,18.5,21,24.6,25.1,27.8,28.1
1917,29.6,28.6,27.1,23.3,19.1,18.4,18.5,19.8,23.8,24.7,25.4,28.6
1918,29.1,27.8,27,24.1,20.2,18.6,18.9,20.6,22.6,25.3,27.6,27.8
1919,28.7,27.8,28,25.8,23.5,20.8,21.5,20.6,20.3,25.4,26.8,28.7
1920,29.7,29.4,28.9,26.3,21.6,19.7,19.2,20.2,23.1,26.4,28.6,28.9
1921,29.5,29.1,28.1,24.5,22.7,18,18.9,22.7,22.7,25.5,27.1,30.2
1922,29.4,28.9,27.7,25.5,21.2,19.2,21.6,22.9,23.7,24,27.8,28.5
1923,29.8,29.5,29,27,19.7,20,18.7,22.6,23.6,25.8,27.6,30
1924,28.5,28.5,28.8,24.5,20.2,20.5,19.9,20.3,22.4,24.3,26.2,29.3
1925,29.3,30.2,28,26.4,21.5,18.1,18.5,24.5,24,25.3,27.8,29.8
1926,30.1,29,30,25.8,20.7,22,20.2,23,25.2,26.7,28.7,29.2
1927,29.9,29.8,29,25.6,21.2,19.3,20.5,21.6,23.6,26.1,27.9,28.5
1928,30.1,29.7,28.6,27.1,21.5,19.5,20.1,21.3,22.8,26.1,28.4,29.4
1929,30.3,29.6,28,24.8,20.6,19.2,20.5,21.7,23.2,26.5,27.6,29.4
1930,29.8,29.2,28.8,26.1,22.6,23.5,20.5,22,22.8,25.6,27.6,29
1931,30.7,29.9,29,25.1,20,18.6,20.8,22.2,21.9,26,27,29.8
1932,29.7,29.7,28.9,26.5,20.9,19.3,23,20.7,23.8,27,28.7,28.9
1933,30.1,30.3,28.9,25.9,22.7,19.6,18.7,22.9,24.2,27.4,27.6,29.3
1934,30.2,28.9,29.9,24.5,22.7,22.6,20.6,22.5,24,25.7,28.7,29
1935,30.3,30.3,30.4,24.7,20.7,22.6,21.4,22.1,22.8,25.6,27.8,30.1
1936,30.8,29.1,29.2,25.3,25,22.7,21.1,20.6,23.7,27.2,28.1,29.8
1937,28.9,29.6,28.3,24.2,20.6,21.7,21.7,24.5,23.6,25.6,27.4,28.7
1938,30.1,29.1,29.8,24.6,21.9,21.6,21,21.9,24.1,26.1,28.1,29.4
1939,31.6,30.1,28.4,25.8,23.1,21.3,20.1,23.9,23.6,27.3,27.2,27.8
1940,29.6,29.8,29.4,26.1,23.9,22.6,23.5,23.2,24.3,26.1,27.7,31.9
1941,31,29.6,28.6,26.7,21.8,19.7,21.3,24.7,21.9,26.7,27.4,28.7
1942,30.4,30.9,28.5,26,20.4,18.8,18.5,23.9,24.5,27.3,30,30.1
1943,30.1,31,30.5,25,23.1,21.1,22.1,20.2,24.4,27.2,28.5,29.4
1944,31.1,30.7,28.9,25.7,22.4,22.1,21,24.7,26.5,28.7,27.9,30.3
1945,30.9,31.2,28.5,27.6,21.9,18.9,22.1,25.8,23.6,28.4,28.2,28.9
1946,28.8,30.5,28,24.5,22.6,20,18.9,24.1,25.7,26.9,29.1,28.8
1947,30.4,30.7,28,25.9,22.9,22.2,19.1,21.5,23.5,24.7,27.4,28.5
1948,31.7,29.5,28,25.8,21.8,21.9,21.9,21,25,26.4,27.7,29.9
1949,30.3,29.8,30.2,24.5,22.1,22,21.8,22.6,23.8,25.3,28.8,29.3
1950,28.9,29.2,27.7,26.6,24.2,21.4,21.6,24.7,23.9,25.9,27.4,29.6
1951,29.6,28.8,27.6,24.6,22.6,21,20.7,21.4,24.6,26.4,28.4,28.4
1952,30.8,29.2,29.3,23,23.7,19.5,21.7,24.3,22.9,25.8,28.2,29.4
1953,30.8,29.6,30,24.8,23.2,21.5,17.7,24,25.8,26.6,28.1,29.9
1954,30.5,30.7,28.6,25.8,21.1,22.5,21.4,23.3,24.7,25.8,29.8,29
1955,30.5,31.8,28.8,26.4,21.5,21,18.2,21.8,24.7,25.3,27.7,29.8
1956,30.3,30.2,28.3,24.5,19.1,18.9,20.3,21.4,25.3,26.8,27.4,29.4
1957,29.8,28.3,28.8,24.9,23.5,20.8,19.7,22.7,22.8,28.4,28.6,30.3
1958,31.5,31.2,28.8,25.2,21.9,22.5,23.1,22.2,23.8,26.7,28.3,29.4
1959,30.7,30.1,28.6,26.8,22.1,20.8,23.2,22.1,25.3,27.3,28.3,28.9
1960,30.5,28.5,28.3,25.4,19.5,20.8,22.3,22.7,24.2,27.8,27.8,30.2
1961,30.8,29.9,27.4,24.6,22.1,20.9,22.6,25.7,24.7,28,28.9,30.5
1962,29.5,29,29.1,25.4,21.3,19.8,17.9,21.9,25,24.8,29.3,30.8
1963,30.8,30,29.4,26.7,22.7,20.2,22.8,24.7,24.9,27.6,28.3,29.1
1964,31.7,30,29.1,26.3,22.2,19.9,19.9,22.4,24.7,26.8,28.1,28.6
1965,29.7,29.4,27.2,25.4,22.1,22.4,21,23.3,24.6,27.6,28.5,28.9
1966,30,29.5,28.5,26.3,22.8,22.1,22,22.1,22.7,26.3,29,29.9
1967,28.9,28.9,27.7,26.5,24.3,19.5,21.4,25,24.8,28.7,27.5,30.1
1968,30,29.9,28.7,23.5,20,21,21.1,21.9,22.6,25.9,29.9,30.2
1969,29.4,30.7,28.5,24.6,22,20.1,21.4,21.5,25.2,25.3,28.3,28.5
1970,30.2,30.2,28.6,26.9,22.9,20.5,20.4,21.3,22.5,25.8,25.7,29
1971,29,28.7,27.6,23.6,20.3,18.9,20.1,23.5,24.3,25,27.8,29
1972,29.6,28.6,28.1,23.6,22.7,21.8,20.2,21,24.5,25.2,26.8,28
1973,29.8,30.5,28,27.4,21.2,20.7,19.9,20,22.4,26.6,27.4,28.5
1974,29.2,29.2,28.2,25.1,22.5,18.7,21.9,21.9,23.8,25.8,27.5,28.4
1975,28.9,30.1,28.7,25.1,21.6,20.7,19.1,23.7,24.1,25.7,28.1,29.5
1976,29.2,29,28.1,24.5,21.6,19.8,20.7,21.3,22,26,28,29
1977,28.9,31.1,29.1,25.3,22.3,21.7,24.3,22.2,25.4,28.1,27.5,28.6
1978,30.3,30.6,29.9,25.2,21.3,20.6,22.8,20.4,23.8,27.5,28.3,29.8
1979,29.9,30,27.9,24.1,20.5,20.2,20.4,23.3,22.6,26.9,26.9,28.5
1980,29.1,30.7,30.4,27.2,23,20.2,21.6,23.3,21.9,27,27.4,29.2
1981,29.8,30.1,29.4,26,24.9,19.5,20,22.6,23.9,25.9,28.7,27.9
1982,29.9,29.6,28.6,26.2,22.3,21.4,22.6,23.6,24.8,26.7,26.9,28.1
1983,30.1,29.6,27.7,25.6,22.9,18.6,20.5,21.9,21.4,26.3,27.4,29.9
1984,30.6,31.6,28.4,24.2,23.3,21,22.3,20.1,23.6,28.5,27.2,27.9
1985,29.8,30,29,26.1,22.1,20.6,20.8,22.1,23.5,27.6,30.4,31.7
1986,31.4,29.7,27.9,26.1,22.9,21.5,20.9,22.8,23.2,26.2,28.6,29
1987,30.3,28.4,28.8,25.8,19.8,20.2,23.8,21.5,23.6,25.8,28.6,28.6
1988,31.1,28.1,30.4,25.3,19.4,18.9,18.9,23.4,24.4,26.3,28.9,30
1989,28.6,29.1,28,25.6,21.7,19.9,19.5,21.9,22.2,25.6,28,28.8
1990,29,29.2,29,26.2,20.5,19.3,17.9,21.8,21.8,27.4,29.2,29.4
1991,29.7,29.7,29,26.3,22.8,21.3,20.9,23,25.1,27.3,28.7,29.3
1992,30.1,30.5,27.8,25.2,22.3,22.9,18.7,20.7,23.6,26.8,27.7,30.1
1993,29.9,30.6,29.1,27.3,22.4,20.3,20.3,21.6,22.9,27.2,28.3,30.3
1994,30.3,29.7,28.4,26.1,24.4,22.7,22.1,22.7,23.5,27.4,27.5,30.9
1995,29.8,29.3,28.4,25.4,21.3,22.5,23.5,24.6,24.1,25.9,29.7,30.6
1996,30.3,29.4,27.5,26.4,22.5,18.9,19.8,23.5,23,26.4,28.6,29.2
1997,30.2,29.9,28.7,25.7,22.5,20.6,23.3,23.1,25.4,26.5,28,30.2
1998,30.7,29.5,28,25,21.7,20.8,22.2,22.8,23.5,26.7,28.4,29.1
1999,29.9,29.8,30,25.4,21.1,20.1,20.1,23.7,25.6,26.1,27.1,30
2000,30.3,29.9,29.1,26.4,21,21.7,18.6,23.3,23.7,28.1,28.2,29.4
2001,30.1,30.1,29.6,27.4,20.8,20.8,22.7,25.2,24.5,27.5,29.6,29.7
2002,30.5,30,30.3,28,23.3,22.4,22.4,22.8,24,28.7,28.6,29.8
2003,31,30.6,29,26.3,21.8,23.6,21.8,20.8,24.5,27.6,28,28.7
2004,29.4,29.6,29,27.7,19.7,21,21.2,22.5,25.8,26.9,27.3,28.8
2005,30.4,30.4,30.4,26.5,23.4,20.8,20.9,24.5,21.7,26.6,28.9,30
2006,31.4,30.5,29.2,25.9,20.6,20.8,23.8,23.5,23.8,28.5,28.8,31
2007,30.1,30.6,29.4,27.3,20.4,21.8,19.4,21.8,26.6,28.1,28,29.9
2008,29.7,29.4,29.1,25.8,21.5,19.5,23,23.1,23.1,26.9,28.5,29.8
2009,29.1,30,30.3,27.7,22.8,19,18.8,22.8,23.8,27.1,29.8,29.5
