1901,12.3,10.9,12.5,13.2,14,14.8,15.2,15.4,14.5,14.1,13.6,12.9
1902,12.1,11.3,11.8,12.5,13.2,14.2,15.1,15.2,14.5,14,13.4,12.3
1903,11.5,12.7,13.3,12.5,13.5,14.1,15,14.8,14.5,13.8,13.6,13.1
1904,12.4,11.5,12.1,12.9,13.6,14.4,15,14.8,14.8,14.5,13.4,12.9
1905,11.7,10.9,12.8,14,14.8,14.5,15.7,15.9,14.3,13.9,14.1,12.8
1906,12.2,12.1,11.9,13.7,14.1,15,15.5,15.8,15.5,15.3,14.5,13.3
1907,12.6,11.9,11.7,12.7,14.4,15.4,15.7,15.4,15.3,14.7,14.4,13.2
1908,11.2,10.7,12.7,12.4,13.3,13.7,14.7,15,14.5,14.1,13.8,12.8
1909,11.4,10.8,11,13.1,12.9,14.3,14.7,14.8,14.6,14.5,14.7,13.4
1910,11.9,10.7,11.5,12.6,12.7,13.7,14.6,15.8,15.4,13.8,13.9,12.6
1911,11,11,11.9,13.1,13.3,14,15,15.4,14.6,14.1,13.5,12.1
1912,11.8,11.8,11.2,12.4,13.1,13.9,14.8,15.8,14.7,14.4,13.9,13
1913,11.6,11.6,12.2,12.7,13.5,14.3,14.9,15.6,14.5,13.9,14.1,12.9
1914,10.9,11.9,12.4,13.1,13.8,14,14.2,15.1,15.3,15.2,14.7,11.8
1915,11.6,10.4,12.4,13.1,14.8,15,15.4,15.9,15.4,14.3,14.5,13.3
1916,12.1,10.4,13,13.6,13.9,14,14.6,14.2,14.4,13.9,13.5,12.3
1917,11.7,11.7,11.8,12.2,14.7,15,15.1,15,14.3,15.3,14.4,14
1918,12.9,12.7,13.1,13.7,13.8,14.5,15.7,16.3,16.2,15.5,14.8,13
1919,11.5,11.6,12.5,13.8,13.9,15.2,15.5,15.7,15.2,14.9,14.4,13.6
1920,12.5,12.2,12.2,13.5,15.4,15.8,16.4,16.3,15.1,14.4,14,13.4
1921,11.9,12.9,13,14.5,14.7,15.4,15.9,15.8,15.1,15,14,13.2
1922,11.4,11.3,12.2,13.6,13.9,14.8,16.3,15.8,15.4,15.2,14.4,13.9
1923,11.9,11.8,12.5,13.8,14.4,14.6,15.7,16,16,15.3,14.4,13
1924,11.2,12.5,12,13.6,13.9,14.9,15.1,15.2,15.3,14.6,14.5,14
1925,12.2,12.7,12.2,12.7,13.8,14.9,15.6,15.7,15.3,15.2,14.6,13.8
1926,12.8,12.6,12.5,13.2,14.5,15.6,16.3,16,16.1,15.4,15.2,13.8
1927,12.6,12.9,12.9,14,14.6,15.4,15.5,15.3,15.3,14.8,14.8,12.8
1928,11.9,10.7,13.3,13.9,14.2,14.7,15.2,15.6,15.1,14.7,14.2,12.3
1929,11.7,11.3,13,13.6,14.6,15.2,15.9,16,15.8,15,13.9,12.3
1930,11.6,12.2,12.7,12.6,14.1,14.9,15.9,16.3,16.3,15.4,15.1,14
1931,12.7,12.2,13.4,13.6,14.8,15.8,15.6,16.2,15.5,15.6,14.2,12.6
1932,12.4,12.2,13.1,13.7,13.9,14.6,15.6,15.9,15.6,15.1,14.9,13.1
1933,11.7,11.9,12.5,12.7,13.7,14.2,14.9,14.7,14.5,14.4,13.8,13.9
1934,12.8,12.5,12.9,12.7,14.7,15.4,16,16.6,16,15.5,15.3,14.1
1935,12.6,11.7,12.8,13.3,14.8,14.5,15.9,15.9,15.6,15.7,15,14.1
1936,13.1,13.1,12.8,14,13.8,15.4,15.8,15.8,15.6,15.8,14.5,12.6
1937,11.8,11.9,12.2,13.9,14.9,15.9,16,16.5,16.1,15.9,15.2,14.3
1938,13.6,13.9,13.6,14.1,14.4,15.8,16.3,16.6,15.8,15.8,14.7,13.3
1939,12.5,13.6,12.5,13.7,14.2,14.4,15.2,15.6,15,14.8,13.7,13.2
1940,13,12.5,13.4,14.8,15.4,15.7,16.2,16.4,15.9,15.9,15,13.6
1941,13.1,12.2,12.2,13.3,13.8,15.3,15.8,16.7,15.8,15.3,14.6,12.4
1942,12.4,12.2,11.4,12.5,14.3,14.7,15.3,15.3,15.1,14.9,14.9,14.3
1943,13,12.3,12.1,13.7,14.1,15,15.4,15.1,15.1,14.9,14.5,13.7
1944,13.1,12,12.4,13.7,13.9,14.3,15,14.7,14.7,14.2,14.3,13.2
1945,12.7,12.9,13,13.6,15,15.4,15.4,15.8,15.2,15,14.8,13.1
1946,13,12.3,12.9,13.1,14.2,15.2,15.7,16,15.7,15.2,14.4,12.7
1947,11.6,12.3,12.5,13.7,14,14.9,15.1,15.3,15.3,14.9,14.2,12.6
1948,11.6,11.9,12.2,13.8,14.3,15,15.6,16,15.3,14.6,13.8,12.1
1949,11.5,11.5,11.4,12.2,13.6,14.5,14.8,15.1,14.6,14.1,12.9,13.1
1950,13.1,13,13.2,13.3,14,14.8,15.2,16,15.2,14.6,14.4,13.3
1951,12.5,12.2,13.6,13,14.1,15.1,15.7,15.8,15.5,14.8,14.2,12.9
1952,12.7,12.2,13,12.8,13.5,14.5,15.2,14.7,14.5,14.9,14.5,12.8
1953,11.7,11.9,12.1,12.9,13.8,14.8,15.4,15.7,15.1,14.5,14,12.8
1954,12,11.7,12,13.6,14.7,15.5,15.6,16.8,15.8,14.8,14.1,12.7
1955,11.8,11.7,11.9,12.7,13.8,14.1,14.3,14.9,13.8,13.7,13.8,12.7
1956,12.9,11.7,12.7,13.3,14.1,14.9,15.2,16.1,15.2,14.4,13.8,13.2
1957,13.2,11.6,11.9,13.3,13.8,14.9,15.7,16.1,15.7,15.3,15.3,14.6
1958,11.9,11.4,12.3,13.4,13.8,14.5,15.7,16.5,15.4,15,14.2,12.3
1959,13.1,12.2,12.4,13.5,14,14.7,15.2,16,15.1,14.5,14.2,13.6
1960,11.5,11.4,12.4,14.1,14.3,15.2,15.8,16,15.8,15.2,14.4,12.8
1961,12.6,13.2,12.9,13.5,14.6,15,15.4,16.3,15.1,15.3,14.7,13.2
1962,12.6,11,12.7,13.8,14.3,14.5,15.2,15.4,15.4,14.2,13.7,12.1
1963,11.7,12.1,13.1,14.4,14.5,15,15.7,15.9,15.7,15,14.3,13.3
1964,13.5,12.3,12.7,13.5,14,15.1,15.3,15.5,15.4,14.5,13.8,13.6
1965,12.7,10.4,11.5,13.5,14.6,14.8,15.1,15.7,15.3,14.6,15.3,12.9
1966,12,12.2,12.5,13,14.6,15.3,16.5,16.3,16.4,16.1,15.8,14.8
1967,12.7,13.8,14.6,14.4,16.2,16.7,17,16.3,16.1,15.9,16,14.2
1968,13.4,13.8,14.6,14.6,15.3,16.4,16.2,16.3,15.9,15.6,15.2,14.2
1969,12.5,14.1,13.8,14.4,14.6,15.2,15.9,16.1,15.6,14.5,14.3,12.5
1970,12.6,11.6,12.2,14,14.6,14.7,14.9,15.9,15.2,15.3,14.7,14.5
1971,12.6,12.5,11.9,13.3,13.6,15,16.4,15.7,16,15.1,15.2,13.7
1972,12.5,12.3,13.3,14.5,14.1,15.5,16.1,16.4,16,15.6,14.7,13
1973,13.2,12.5,14.2,13.9,14.2,15,15.8,15.9,16,15.7,15.6,13.8
1974,14.4,13.3,13.6,14.4,14.6,15.6,15.6,16.2,15.9,16,14.5,14.2
1975,13,13.3,13.5,14.1,13.9,15.1,15.4,16.3,15.6,15.3,14.6,13.5
1976,12.9,13.1,13.9,14.2,14.6,14.8,15.6,16.4,16.2,16.1,15,14.9
1977,13.2,13.2,14.6,15.1,15,15.6,16.8,17.1,16.7,16.5,15.2,14.1
1978,12.4,12.3,14.1,14.5,15.9,16.8,17.4,17,16.1,15.7,15,13.8
1979,12.3,12.8,12.7,14.5,14.2,15.4,15.6,15.8,16.1,16,14.3,13.6
1980,12,12.8,14.7,15.2,17.1,17.3,17.1,15.3,15.7,15.1,14.2,13.5
1981,12.8,12.8,12.9,14,14.7,16,15.9,16.3,15.8,15.1,15,13.5
1982,13.4,12.5,12.8,13.2,14.1,16.5,17.3,17.4,16.6,15.3,15.4,13.1
1983,11.8,11.7,12.4,13.9,14.4,14.8,15.8,15.5,15.5,15.2,14.2,13
1984,13.2,13,13.7,14.6,14.9,15.9,16,16.6,16,16,15.1,13.7
1985,11,12.4,13,13,14.2,15.3,16.4,16.4,16.1,15.7,14.1,13.1
1986,12.8,13.5,14.7,14.9,15.7,17,17.7,18.1,17.3,15.7,16.3,14
1987,13.6,11.3,12.9,14,14.4,16.3,17.2,17.4,17.2,16.6,15.8,14.8
1988,13.9,13.8,13.7,14.4,15.3,15.6,16.3,16.5,16.5,16.6,16.8,15.2
1989,14.2,13,13.6,14,15,15.9,16.6,15.7,15.7,15.7,14.5,12.6
1990,14.2,12.4,13.4,14.1,15.4,15.9,16.3,16.8,17,16.4,16.3,14.3
1991,13.2,12.6,13.7,14.4,15,15.6,16.2,17.3,16.6,15.9,15.7,14.5
1992,12.1,12.4,13.3,13.5,15.1,16.7,16.8,17.5,17.5,16.5,16,14.9
1993,12.6,11.6,13.2,14.1,14.4,15.8,16.4,16.9,16.8,16.1,15.3,13.9
1994,11.9,13.1,13.4,14.5,15.3,16.3,17.6,17.7,17.7,16.2,16.7,14.2
1995,12.7,12.6,14.4,14.6,15.7,16.4,17.5,16.9,16.6,16.2,15.4,14.4
1996,14.2,13.4,13.1,14.8,16,16.6,16.9,16.6,16.6,16.2,16.3,14.2
1997,13.1,12.8,14.2,14.1,15.6,16.7,16.9,17,16.6,15.7,15.3,14.8
1998,12,12.1,13.4,13.8,14.7,15.3,15.8,16.6,15.3,15,14.6,12.6
1999,12,11.7,12.6,12.8,14.2,14.6,15,15.6,14.8,14.6,14.3,13.5
2000,12.1,11.6,12.8,13.6,14.6,15.8,16.4,16.6,16,15.8,14.8,13
2001,12.5,12.7,12.9,13.8,14,15.1,15.7,16.4,16.2,15.7,15.3,14.5
2002,13.4,12.2,12.9,14.4,15.4,15.4,16.8,16.8,16.4,15.7,14.9,14.1
2003,12.7,12.9,13.5,14.2,14.4,16,16.9,17.3,16.6,16.1,15.3,14.2
2004,13.2,14.1,14.3,14.6,16.1,16.3,16.4,17.2,16.5,16.5,15.5,14.2
2005,13.9,13.3,14.3,15,16.2,16.4,17.2,16.7,17,15.4,15.6,14
2006,13.3,12.4,14.4,14.2,14.2,15.9,16.7,16.8,16.1,16.4,16.2,14.1
2007,13.1,12.3,14.1,14.2,15.6,16.2,17,17,16.5,15.6,15.5,14.8
2008,12.6,12.9,14,14.4,15.1,16,16.7,16.4,15.7,15.4,14.8,14.2
2009,12.3,12,12.2,12.6,15.3,16,16.4,16.3,15.7,16.3,15.1,13.7
