1901,19.1,20,21.4,22.3,22.6,22,21.8,21.8,21.5,21,19.6,19.1
1902,18.5,19.8,22,22.4,22.8,21.9,22,21.2,22.2,21.3,20.4,19.3
1903,19.4,20.8,21.7,22.2,22.3,22.4,22.1,21.9,22.1,20.9,19.5,18.5
1904,19.1,20,21.4,22.5,22.7,21.9,21.8,21.7,21.5,20.9,19.8,19.3
1905,19.2,20.1,21.5,22.4,22.9,22.1,21.8,21.8,21.6,21.1,20,19.3
1906,18.5,19.3,21.1,22,22.7,21.7,21.9,21.8,21.8,21,20,19
1907,19.4,19.8,21.5,22.4,22.7,21.8,21.4,21.3,21.3,20.9,20.1,19.1
1908,18.6,19.5,21.5,23,23.1,22,21.8,21.7,21.4,20.5,19.4,19.3
1909,18.9,19.9,21.9,22.6,23.3,21.8,22,21.8,21.4,20.8,19.4,19.2
1910,18.3,19.3,20.1,21.5,22.3,21.5,21.6,21.7,21.4,20.7,19.2,18.1
1911,19,20,21.5,22.7,21.5,21.2,21.8,21.7,21.5,21.3,20.3,19.4
1912,19.2,18.9,21.8,23.3,22.7,21.7,21.7,21.7,21.4,21,19.3,19.5
1913,19.6,20.8,21.6,21.1,21.6,21,21.5,21.7,21.2,20.6,19.4,19
1914,18.7,19.9,20.2,22.1,22,21.3,21.9,22,21.3,20.7,19.5,19.6
1915,18.9,19.4,20,21.2,23,22.2,22.2,22,21.6,20.9,19.9,19.4
1916,19.9,19.3,20.8,21.8,22.4,21.5,22.2,21.5,21.2,20.6,19.3,19.3
1917,19.3,19.8,21.6,22.3,22.7,21.8,21.8,21.8,21.5,20.9,19.6,18.7
1918,18.8,20.4,21.6,22.5,22.5,21.5,22,21.8,21.5,21.5,20,19.2
1919,18.5,20.1,21.5,21.9,22.3,21.4,21.7,21.8,21.5,21.1,20.5,19.3
1920,19.4,19.6,21.5,23.2,22.8,21.3,21.6,21.6,21.5,20.8,19.6,19.1
1921,18.9,19.8,21.6,22.3,21.5,21.5,21.7,21.7,21.4,20.7,19.9,19.4
1922,19.4,20.2,21.8,23,22.7,21.8,21.8,22,21.6,20.9,20,19.4
1923,19.2,20,21.6,22.7,22.8,21.8,21.9,21.8,21.5,20.7,19.4,19.5
1924,19.2,18.9,21.3,22.6,23,22.2,22,21.9,21.5,20.7,19.3,19.6
1925,19.6,19.9,21.1,21.7,21.9,21.4,21.7,21.9,21.5,21.5,20.1,19.3
1926,19,19.7,21.6,22.4,22,21.9,22.2,21.8,21.8,21.2,19.4,19.7
1927,18.8,20.7,21.5,22.6,23.2,22.3,21.7,22.2,21.8,20.9,19.8,19.4
1928,18.6,20.3,21.6,22.1,22.1,22.5,22.1,22.1,22,21.3,19.8,19.1
1929,19.6,21,22.2,23.3,22.7,21.6,21.5,21.7,21.4,21,20.4,18.9
1930,19.4,19.9,21.3,21.8,22.5,21.5,21.5,21.9,21.6,21.1,19.5,18.7
1931,19.4,20.3,21.5,22.6,22.5,21.9,21.5,22.2,22,21.5,19.4,20.1
1932,20,20.6,21.4,22.4,23,21.6,21.5,21.8,22,21,18.8,19.7
1933,20,20.8,21.4,23.4,22.9,21.8,21.8,21.6,21.2,20.9,18.8,18.9
1934,19.6,19.7,20.4,23,22.5,21.5,21.8,22.5,22,21.2,20.2,19.8
1935,18.6,19.1,21.4,22.9,22.6,21.8,22,21.8,21.9,21.1,19.7,19.4
1936,20.5,21,22.6,22.9,22.8,22,21.9,22.5,21.9,21.6,20.5,19.4
1937,20.7,20.9,22.2,23.1,22.8,22.1,22,21.8,21.1,20.5,18.8,19.4
1938,19,19.5,21.2,21,22.2,21.3,21.3,21.4,21.2,20.3,19.5,18.2
1939,19.5,19.8,20.5,22.2,22.7,21.5,21.6,21.9,20.8,20.9,19,20.2
1940,18.8,19.1,21.6,21.8,22.5,21.4,22.2,22.4,21.8,20.5,19.6,19.1
1941,19,19.9,21.7,22.9,22.4,22.2,21.5,21.9,21.1,20.5,19,19.3
1942,18,20.4,21.2,22.4,23.3,21.5,21.5,21.2,20.8,20.4,19.2,19.2
1943,18.8,18.2,19.9,21,21.7,21,21.1,21.1,21.2,19.7,18.3,18.2
1944,18,19.7,21.2,22.1,21.9,21,21.7,21.5,20.9,19.5,19.4,17.9
1945,19,20.3,21.5,22,21.8,21.7,21.7,21.4,21.1,20.4,19,19
1946,19.6,19.9,20.9,21.9,22.9,21.7,21.4,21.5,21,20.2,19.9,18.9
1947,19.9,19.3,21.5,22.4,22,21.2,21.3,21.1,21.1,21,20.4,18.8
1948,18.8,19.8,21.2,21.2,21.8,21.1,21.1,21.5,21.1,20.5,20.1,18.8
1949,18.6,19.1,20.9,22.2,22.3,21.5,21.6,21.4,20.9,20.4,17.7,18
1950,18.6,18.6,20.2,20.9,21.8,20.9,21,21.1,21.2,20.2,18.2,17.7
1951,19.1,18.6,21.1,22.7,22.5,22.4,22.4,22.7,22.5,20.5,19.6,19.5
1952,19.3,19.5,20.7,22.1,21.7,21.6,21,22.7,23.1,20.1,21.1,18.5
1953,18.4,19,20.9,23,22.6,22.1,21.8,21.9,21.9,20.9,19.4,19.3
1954,19.1,19.1,21.2,21.9,21.6,20.8,21,21.5,21.1,19.3,20.9,17.8
1955,18.3,19.3,20.4,21.6,22,21.7,20.6,21.2,20.8,19.8,19.5,18.3
1956,18.2,19.7,21,22.3,21.7,20.8,20.8,21.4,21.5,20.7,18.7,18.8
1957,19,19.9,21.4,22.1,22.5,21.9,21.5,21.5,21.2,20.3,20.1,18.7
1958,19,19.8,23,23.7,23.1,22.2,22.4,21.9,21.3,21.3,20.7,19.6
1959,19.4,20.6,21.6,22.6,22.3,21.7,22.1,22.6,21.5,21.4,19.8,18.8
1960,19.3,20.6,21.1,21.9,22.7,21.5,21.3,21.3,21.2,20.9,20.1,18.2
1961,19.2,19.8,21.3,22.5,22.3,21.4,21.3,21.7,21.1,20.7,19.7,19.5
1962,18.6,19.1,21.4,21.7,21.2,21.3,21.3,21.5,21.3,20.7,19,18.8
1963,19.1,20,21.1,21.6,22,21.5,21.3,21.7,21.2,20.6,19.1,18.2
1964,19,20.5,20.8,22.8,22.4,21.1,21.3,21.8,21.4,19.8,19.8,19.2
1965,18.9,20.3,20.9,22,22.4,21.7,21.8,21.6,21.8,20.6,20.4,19.7
1966,19.5,20.6,20.8,22.6,22.9,21.7,22,21.8,21.7,21.7,18.4,18.4
1967,18.9,19.8,20.5,21.5,22.3,21.5,21.4,21.7,21.2,20.7,19.9,19.8
1968,18.9,19,19.8,22.1,22.1,21.3,21.6,21.7,21.4,20.6,19.7,19.2
1969,19.2,20.7,22.6,23.5,23.1,22,22,21.7,21.2,21.4,19.8,19
1970,19.8,19.3,21.9,22.9,22.2,21.9,21.6,21.6,21.3,21.5,18.9,19.1
1971,19.2,19.9,21.1,21.5,22.7,21.7,21.4,21.5,21.2,21.1,19.7,19.4
1972,19.6,19.6,21.3,23,23,22.3,22.4,21.3,22,21.5,21.3,20.2
1973,19.8,20.7,23.2,22.8,23,22,21.8,21.7,21.6,21.3,20.4,17.7
1974,19.4,18.7,21.1,22.2,22.3,21.7,21.5,21.7,21.1,20,19.4,19.3
1975,19.4,19.9,22,22.7,23.1,22.6,21.8,21.6,20.9,20.5,19.8,18
1976,18.1,18.6,21.3,22.3,22.5,21.3,21.8,21.9,22,21.1,19.9,19.8
1977,19.1,20.5,22.3,21.5,22.2,21.7,22.2,22.5,22.4,21.5,20.5,20.1
1978,18.8,20.2,21.7,22.8,23,22.6,21.6,22.6,21.7,20.9,21,20.1
1979,19.3,20.6,22.1,21.2,23.1,22.3,22,22,21.4,21.7,20.1,19.2
1980,20.3,20.7,22.8,22.9,23.3,22.6,22.6,22.5,22,20.9,20.4,18.5
1981,18.7,20.2,22.3,22.6,23.2,22.1,22.3,22.1,22,21.4,19.6,19.8
1982,20.2,21.1,21.8,23.3,23.2,22.3,21.7,22.3,21.6,20.8,20.2,20
1983,20.2,21.5,22.7,23.8,24.9,23.2,22.5,22.5,22.2,21.3,20.9,20
1984,18.8,19.9,21.5,22.8,22.5,21.6,21.1,21,20.8,20.9,19,19
1985,18.5,19.6,21.4,22.3,22.2,21.6,21.7,21.8,21.8,20.9,20.3,19.9
1986,18.6,20.5,20,22.4,22.6,21.8,21.6,21.9,20.7,20.8,20.4,20.3
1987,18.7,20.6,22.7,23,23.2,22.7,21.5,21.9,22,20.5,20.6,20.7
1988,19.9,20.8,21.7,23,23.1,21.8,21.9,21.5,21.2,20.6,20.7,18.8
1989,19.7,19.5,20.6,22.5,22.5,22,22,22,21.4,20.8,20.9,18.9
1990,19.6,20.3,21.2,22.9,23.4,22.6,22.3,22.7,22.4,21.5,19.8,19.8
1991,20.1,20.4,22.2,23.1,23.4,23.3,23.4,22.6,22.3,21.8,19.6,19.6
1992,19.7,19.9,22.5,23,23.3,23.4,22.5,22.5,21.1,21.5,21.4,20.7
1993,20,21,22.6,23,22.2,23.4,21.9,21.6,21,22.2,20.6,19.3
1994,19.5,20.6,22.2,23.2,22.8,23.4,22.2,22.8,22.5,21.2,20.6,19.8
1995,20.1,20.4,22.1,22.9,22.4,22.3,21.9,21.7,21.2,21.6,20.3,19.7
1996,18.5,19.5,20.3,22.7,22.6,22.2,22.2,21.1,22.3,21.5,19.4,19.6
1997,19.6,20.4,22.6,23,23.8,23,22.7,23.3,22.2,22,20.6,20.5
1998,19.6,20.6,22.8,23.7,24.5,23.3,22.3,22.9,22.6,22,20.5,19.5
1999,19.2,19.7,21.6,22.5,22.9,22.4,22,21.9,21.3,20.9,19.1,19
2000,18.9,19.8,21.8,22.6,22.8,22.2,22.5,22.3,21.9,21.5,20.9,19.7
2001,19.6,21.3,21.8,23.4,23.2,22.3,23,22.9,21.5,22.1,20.7,20.4
2002,20,21,22.5,23.4,23.3,22.4,23,22.5,22,21.8,20.4,20.8
2003,19.5,21.7,22.4,22.8,23.8,22.3,22,22.8,22.7,22.1,21,19
2004,20.1,21.4,22.7,23.5,23.3,23,22.2,22.5,22.4,21.9,20.8,20.1
2005,19.9,20.7,23,23.7,23.6,22.7,22.8,23,22.6,21.2,20.5,20.4
2006,20.3,20.4,22.3,23.2,23.2,22.1,22.3,22.8,22.6,22.3,20.3,20.3
2007,19.6,20.1,21.2,23.1,23.2,22.4,22.3,22.3,21.7,20.7,19.4,19.5
2008,19.8,20.7,22.8,23.9,24.7,23.1,22.6,22.3,23.3,21.3,20.1,20.4
2009,20.7,20.7,21.7,24.4,23.7,23,23.5,22.3,22.9,22.3,21.4,21.8
