1901,15.3,15.8,15.7,16.2,16.5,16.3,15.9,17.3,17.2,16.8,17,16.2
1902,15.1,15.1,15.7,16.1,16.5,16.1,16.5,16.9,17.2,16.7,17.5,16.6
1903,15.6,16.6,15.8,15.5,15.7,15.8,15.8,16.4,17,16.3,16.5,15.2
1904,14.5,14.7,14.8,15.5,15.4,16.3,15.6,16.8,16.7,16.3,17.4,16.2
1905,15,15.7,15.2,16,16,16.7,16.2,16.8,16.7,16.9,17.2,15.9
1906,14.9,15.4,15.6,16.3,16.1,15.9,15.8,16.6,17.1,15.9,17.1,15.2
1907,14.6,14.3,15.8,15.5,16,16.3,15.6,16.7,17,16.3,17.2,16.2
1908,15.2,14.9,15.6,16.1,16.3,16.7,15.7,16.5,16.5,15.9,16.8,15.8
1909,14.6,14.7,15.7,15.3,16.3,15.5,15.5,16.2,16.9,16.4,16.8,15.6
1910,14.4,14.7,14.8,15.9,15.4,15.9,15.4,16.4,16.4,16,17.2,15.7
1911,14.6,15.7,14.7,15.9,15.7,16,16.1,17,17.1,16.9,17.4,17
1912,16.5,16.4,16.6,16.9,16.4,16.3,15.5,16.7,16.8,16.5,16.5,16.2
1913,15.6,15.7,15.8,15.6,15.8,15.8,16.1,16.7,16.5,16.9,17.8,16.7
1914,15.5,16.3,16.1,16,16.3,16.5,16,17.2,16.9,16.3,17,17.1
1915,16.3,16.3,16.9,17.2,16.8,16,16.1,17.1,16.6,16.6,16.7,16.6
1916,15.5,15.4,15.7,16.4,15.7,14.5,14.3,15.5,16.8,15.9,15.7,15.9
1917,15.2,15.2,16.2,16.1,15.7,16.1,15.5,16.4,16.1,16.2,17.1,15.1
1918,15.4,15,16.4,15.7,14.4,18,16.9,18.8,17.6,17.1,17.9,17.2
1919,16.4,16.7,16.6,16.5,16.6,16.5,15.9,17,17.2,17.2,17.3,16.2
1920,15.2,15.2,15.7,16.3,15.5,16,16.1,16.6,16.7,16.7,17.2,16.1
1921,15.4,15,16,15.8,16.2,13.9,14.7,16.1,16.3,16.4,17.7,17.1
1922,15.7,15.9,16.1,16.9,16.5,16.2,16.6,16.5,17.3,16.7,17.8,16.2
1923,15,15.5,15.9,15.8,16.5,16.6,16.5,17.3,17.7,16.7,18.1,16.7
1924,16.6,15.8,16.1,16.5,16.4,16.4,16,16.8,16.9,16.8,17.2,16.2
1925,15.1,14.7,15.3,16.2,16.9,16.7,15.9,18,16.9,17.6,18,17.2
1926,16.9,16.6,16.2,16.5,16.6,16.9,16.1,17.4,17.9,18.5,19.3,18
1927,16.6,16.4,16.9,16.4,16.4,16.5,16.1,17.4,18.2,18.6,19.2,18.3
1928,16.8,17,16.2,16.4,17.2,16.7,16.1,17.4,17.9,17.8,19.3,18
1929,16.9,16.6,16.8,16.4,16.7,16.7,16.1,17.1,17.6,17.8,18.8,17.9
1930,16.2,16.2,16.2,16.5,16.2,16.7,16.1,16.8,17,17.9,18.5,18.2
1931,15.9,15.6,16,16.6,16.1,16.2,15.8,17.1,17.5,18.1,19.4,17.6
1932,16.3,16.3,16.4,16.7,16.3,16.4,16.6,17.4,17.6,17.5,17.7,16.8
1933,15.9,16.2,16.5,16.5,16.3,16.4,16,17,17.7,17.5,17.8,16.8
1934,16.1,15.5,16.3,16.7,16.6,16.7,16.1,16.7,17.1,18,18.5,17.8
1935,16.2,16.3,16.7,16.5,16.1,16.5,16.1,16.8,17.6,17.2,18.2,17.2
1936,16.2,16.6,16.1,16.4,16.8,16.3,16.2,17.1,17.7,17.8,18.1,17.2
1937,16.3,15.8,17,17.7,17.2,17.8,17.8,18.8,18.5,18,19.3,17.8
1938,17,16.4,16.9,17.9,17.3,17.1,17.3,18.3,18.7,17.7,19.1,17.8
1939,16.4,16.5,17.1,18.6,17.5,18.3,17.8,17.4,18.1,18.7,18.6,17.4
1940,16.7,17.6,17.5,17.5,18.1,18,17.8,18.1,19.2,19.4,20.1,17.8
1941,17.4,17.2,18.4,17.8,18.4,17.2,17.7,18.9,19.3,19.9,20.7,19.1
1942,18.1,18.7,18.2,18.8,18.2,18.9,18.6,20.1,19.3,20,20.8,17
1943,18.7,17.8,18.5,19.3,18.7,18.7,18.6,19.1,18.8,19.4,20.8,18.7
1944,18,16.9,17,19.1,19.1,19.2,17.5,19,20,19.6,19.6,19.2
1945,17.8,17.2,17.5,18.8,18.6,16.6,18.1,19.3,19.5,18.5,20.2,18.3
1946,18.1,18.3,18.2,16.6,16.6,17.3,15.5,17.8,18.5,18.6,19.2,16.7
1947,17.5,17.6,18.2,18.1,18.3,16.6,15.7,16.9,17.7,17.8,18.3,15.8
1948,16.5,15.6,15.3,16.2,17.2,16.8,15.7,17.5,17.4,17.6,18.3,16.5
1949,17.5,15.4,16.1,15.9,15.4,15.3,15.5,15.6,16.7,16.8,17.8,16.8
1950,15,15.2,15.2,15.8,15,15.3,15.2,16.8,17.6,17.6,18.5,16.7
1951,15,14.6,14.8,15.1,16.7,17.1,17,17.9,18.2,17.9,18.1,16.4
1952,15.4,15.3,16.4,14.9,15.4,14.1,14.7,16.2,17,17.5,17.3,16.4
1953,15.1,15.4,15.4,16.3,15.8,16.1,14.9,17.2,18.3,16.8,17.2,16.4
1954,15.2,14.8,14.5,15,14.8,16,15.1,16.9,17.2,16.4,17.4,17.4
1955,15.5,15,15.2,15.6,15,15.8,15.2,16.4,16.9,17.2,17.6,16.5
1956,14.6,14.7,15.9,14.6,14.6,15.1,15.1,16,17.2,16.5,17.2,16
1957,14.7,14.8,15.9,16,16.9,16.6,15.6,17,17.3,17.6,18.2,17.2
1958,16.9,17,17,17.5,16.6,18.1,18.3,17.2,18.1,17.7,16.7,16.8
1959,15.6,15.7,16.3,17.1,16.6,17.1,17.1,16.1,16.5,16.9,17.8,17.1
1960,16.7,16.5,16.2,15.3,15.8,17.1,16.6,18.8,18.3,17.7,17.2,17.6
1961,16.9,15.9,16.7,16.9,17.5,17.8,17.9,17.7,17.6,18,18,16.4
1962,15.9,15.6,15.4,16.7,17.6,17.3,17.2,17.9,18,18.3,19.7,16.2
1963,15.4,15.1,16,16.8,17.1,17.4,17.8,18.8,17.3,18,18.9,18
1964,17.2,17,15.7,16.6,15.4,15.3,15,17.6,17.6,17.9,17.9,17.6
1965,16.1,15.4,15.6,16.2,16,15.7,15.6,17.7,17.8,19,19.3,17.5
1966,16.4,16,15.8,16.5,15,15.3,15.1,17.2,17.5,17.3,18.3,17
1967,16.1,15,14.8,15.9,15.7,15,14.4,16.1,16.9,16.4,18.1,16.1
1968,15.9,15.3,15.3,15.6,16.1,15.7,15.6,16.9,17.5,17.1,17,17.2
1969,15.9,16.3,16.9,16.8,17,16.2,15.4,16.4,17.2,18,18.7,17.1
1970,15.6,16,15.7,16.3,15.7,16.4,13.8,16.6,16.7,17.7,18.5,15.7
1971,15.3,14.7,15.6,15.6,15.6,15.5,15.9,16.4,17.7,16.8,18,16.1
1972,14.8,15.5,15.3,16.5,16,16.3,16.5,16.5,17.1,18.3,18.4,17.8
1973,15.7,16.4,16.5,16.3,16,16.5,15.9,17,16.8,17.6,18.2,16.8
1974,14.9,14.3,15.7,15.9,16,15.6,15.7,15.5,17.4,17.2,18.5,16.8
1975,15,15.5,15.6,16.7,15.5,16,16.7,16.8,16.8,17.1,18.1,16.3
1976,15.2,15.2,15.7,16,15.5,16,16.2,17.1,16.5,19,19.1,17.9
1977,16.8,15.4,16.5,17.5,16.5,16.5,16.7,17.7,17.8,17.8,17.9,17.3
1978,15.7,16.7,16.8,17,17.3,15.9,16.7,16.3,17.7,18.3,18.3,17.3
1979,16.6,16.6,16.4,16.7,17.4,17.3,16.4,17.6,19.4,18.4,19.3,17.4
1980,17.1,17,16.6,17.2,16.8,17.6,16.4,18.1,17.6,17.5,19,18.1
1981,15.3,14.3,15.7,16.3,17,17.4,16.5,16.6,15.7,15.3,16.8,17.1
1982,16.5,15.6,16.5,17,17.7,18.2,17.5,16.5,16.5,16.7,17.9,17.1
1983,18.4,17.4,17.8,18.5,17,17.8,17.8,18.1,17.9,16.8,19.3,17.2
1984,14.4,14,15.4,16.3,15.7,15.8,16.6,17,17.3,18.4,16.7,16.8
1985,16.2,15.1,17.2,14.5,16.2,13,15.1,16.5,16,17.6,16.3,15.8
1986,15.4,14.5,15.3,16.5,15.3,16.2,16,17.1,17,16.8,18,17.2
1987,16.3,16,17.5,17.8,16.4,16.6,15.6,18.1,18.7,18.3,17.9,17.8
1988,15.5,16.6,15.5,16.2,16,15.8,14.9,17.4,17.3,17.5,18.3,16.8
1989,14.6,15.2,15.5,15.1,15.5,13.3,15.2,16.4,17,17,17.1,16.4
1990,15,15.9,15.7,15.6,16.2,15.1,15.9,16,17.6,17.2,17.7,17
1991,14.9,16.1,16.3,16.3,16.6,16.7,15.8,16.5,16.9,17.5,18,17.5
1992,17.1,17.8,17.6,17.6,17.4,16.9,15.8,17,15.9,15.7,16.7,16
1993,15.4,17,17.3,16.3,16.8,16.8,16.8,16.4,16.9,17,17.8,17
1994,15.9,15.8,17.5,17,17.2,16.9,16.5,17.4,17.7,17.9,18.9,18.2
1995,17,16.9,16.3,17.8,17.2,17,17.8,18.4,17.9,18.1,18.4,17.2
1996,16.2,15.7,16.5,17.2,17.4,16.6,16.2,16.9,17.4,17.2,17.7,16.6
1997,16.1,15.5,16.5,16.4,16.8,17.1,17.3,16.7,17.6,18.3,18.5,18.2
1998,17.8,17.8,18.4,18.7,17.8,17.3,17.5,18.3,18.1,17.7,18.5,17.5
1999,16.5,15.9,16.4,16.8,16.5,17,16.4,17.5,17.3,17.2,18.5,17.2
2000,15.6,15.3,15.3,17.3,17.2,16.7,16.3,17.4,17.9,16.9,18.9,17
2001,15.1,15.7,15.8,16.8,16.7,16.6,16.5,16.5,17.7,17.5,18.4,17.3
2002,16.1,15.4,15.9,16.7,16.1,16.3,15.2,16.4,17.1,17.3,17.6,17.1
2003,16.1,16.1,16.5,16,16.1,16,16,15.8,17.5,17.6,18.7,17.2
2004,15.8,15.5,16,16.7,16,15.2,15.5,16.1,17,17.3,18.2,17.4
2005,16.4,15.6,16.3,16.8,16.5,16.1,16.2,17.1,17.1,17,17.4,16.5
2006,15.5,15.2,16.5,16.3,15.5,16.3,15.9,15.8,17.7,17.5,17.6,16.7
2007,16.5,15.6,15.7,16.7,16.2,15.6,16,17.3,16.8,16.5,17.7,16.5
2008,15.3,15.2,15.5,16.7,15.7,16.4,16.4,17.5,17.7,17.2,18.3,16.9
2009,15.7,15.6,16,16.9,16.1,16.6,16.3,17.4,18.1,17.6,18.5,16.9
