1901,19.6,20.4,21.9,23,24,22.8,21.9,21.4,21.8,22.2,21.8,19.8
1902,20.2,20.3,21.9,24,24.9,23.5,22,22,21.7,21.7,21.9,20.3
1903,19.9,20.3,21.1,23.2,23.8,22.4,21.7,21.3,21,21,21,19.7
1904,19.4,20.9,22.6,23.8,23.9,23,21.5,21.4,21.2,21,20.6,20
1905,19.7,19.3,21.7,23.1,24.6,23.2,22.1,22.2,21.4,21.4,21.2,18.8
1906,19.8,19.7,21.4,23.1,24.1,23.5,21.9,21.2,21.5,21.1,20.8,20.1
1907,21,21,22.5,23.4,23.7,23.1,21.8,21.8,21.9,21.5,20.1,20.2
1908,20.4,20.5,22.3,23.2,24.5,23.6,21.8,21.8,21.3,21.2,20.8,19.8
1909,20.4,20.6,22.9,23,24.3,23.1,21.7,21.2,20.7,20.9,21.4,18.7
1910,19.7,19.7,21.3,22.9,24,22.9,21.9,21.4,20.9,20.6,20.9,19.7
1911,20.6,20.5,21.5,22.8,23.1,23,21.4,21.8,21.7,21,19.9,19.1
1912,19.7,19.9,20.8,23.1,24.4,22,21.7,22,21.6,21.2,19.9,19
1913,19.7,19.9,21,22.3,23.9,21.9,21.6,22,20.9,20.9,21,19.4
1914,20.9,20.1,20.8,22.5,23.7,22.2,21.5,21.2,21.2,21.6,20.4,18.3
1915,19.4,20.5,20.8,22.7,24.7,23.6,22.1,22,21.2,21.4,20.9,20.2
1916,21.1,21.4,22.7,23.3,24.2,23.5,21.1,20.8,20.7,20.6,19.7,19.3
1917,19.2,19.8,20.7,21.8,24,21,21.1,20.9,20.4,20,20.8,18.3
1918,18.7,20,19.1,22.4,23.5,21.5,21.1,20.7,20.4,21.1,20.6,19.1
1919,17.3,19.8,20.3,21.5,23.8,22.8,21.4,21.6,20.8,21.1,20.4,18.9
1920,18,20.3,21.6,23.4,22.3,21.7,21.7,21.2,20.8,20.7,20.4,18.6
1921,18.2,18.6,20.4,22.1,22.8,22.7,21.2,21,20.8,19.8,19.9,18.8
1922,19.1,20.1,21.1,23.2,25,21.9,21.6,21.4,20.9,20.3,20.3,18.9
1923,19.2,20.2,21,23.5,24.6,22.8,21.4,21.4,21.6,20.4,20.3,19.2
1924,18.6,19.5,22,23,22.9,22.2,21.4,21.4,20.4,20.3,19.3,18.7
1925,18.1,19.8,20.3,23.5,23.5,21.7,21.3,21.4,20.6,21,19.9,17.8
1926,18.4,20,21.3,23.3,23.8,22.6,21.9,21.6,20.8,20.9,19.4,18.9
1927,17.9,19.5,20.7,23.3,24.8,22.5,21.3,21.3,20.5,20.4,19.6,19.1
1928,18.5,20.6,21.1,23.1,24.4,23.1,21.6,21.2,20.9,20.7,19.8,18.5
1929,18.6,19.7,20.7,23.9,23.8,22.3,20.8,20.5,20.6,20.2,20.6,18.9
1930,19,20.2,21.5,22.7,24.7,22,21,21.1,21.5,21.1,19.9,19.3
1931,18.3,21.1,20.7,21.5,22.9,22.6,21.8,21.2,20.5,20.9,19.9,19
1932,19.1,20.1,20.2,21.9,23.3,22.9,21.3,21.5,21.1,20.4,18.2,18.3
1933,18.6,20,20.4,23.1,24.5,22.4,22.7,21.1,20.7,20.5,19.4,18.2
1934,18.6,19.1,21,20.8,22.1,23.1,21.7,21.1,20.9,20.3,20.5,19.8
1935,18.5,19.8,20.9,23.3,23.9,22.1,21.3,21.5,21.3,20.7,20.6,19
1936,19.5,21.5,21.9,24.2,24.5,23.4,22.4,21.6,20.9,21.1,21.1,19.4
1937,20.6,21.6,21.2,24.3,24.3,22.3,21.6,21.5,21.3,20.9,20.2,18.8
1938,19.5,21,21.2,23.2,24.5,22.3,21.7,21.5,20.6,20.6,20.6,18.4
1939,18.8,20.6,21.1,23.7,24.4,22.7,21.6,21.8,20.6,21,19.4,18.8
1940,17.9,21.5,20.6,24.8,25.6,23.2,21.4,21.7,20.8,21,20.7,19
1941,18.6,21.7,21.7,22.9,25.1,22.4,21.6,21.6,21,21.4,20.8,19.8
1942,19.3,21.3,21.6,24.9,26.1,23.3,21.9,21,20.8,21.6,20.4,19.5
1943,19.6,21.5,21.8,23.8,25.6,22.5,22.4,22.3,22.1,20.9,19.4,19
1944,18.9,21,20.8,23.4,24.3,22.9,22.4,21.7,21,19.9,20.9,19
1945,19.6,21,21.8,23.5,24.2,23.5,22.3,21.7,21.3,20.7,20.6,19.8
1946,19.5,21.3,21.9,23.4,24.7,22.6,22.2,21.8,21.8,21.4,21.2,19.6
1947,20,21.3,22.1,23.8,24.5,23.7,22.5,21.4,20.9,21.5,20.7,19.4
1948,18.8,22.4,23,24.6,25.8,23.5,22,22.3,21.4,21.1,21.5,20.4
1949,19.9,22,22.4,23.8,24.6,23.4,22.2,22,21.3,21.9,18.8,19.5
1950,19.6,21.3,20.9,22.9,24.4,22.6,21.4,21.8,21.5,20.4,19.7,18.1
1951,19.6,20.7,22.7,24.2,24.7,23.7,22.2,21.9,21.6,21.4,22,21.6
1952,21.7,21.9,23.1,23.1,25.1,22.6,22.2,21.7,21.4,19.6,21.4,20.2
1953,19.6,20.9,23,24.3,24,23.5,22.2,22.1,22.3,21.6,19.7,19.6
1954,20.3,21.3,22.2,24.4,23.9,22.7,21.7,21.8,21.3,20.9,20.3,19.5
1955,19.3,19.7,22.1,23.4,24.2,23.3,20.7,21.5,20.2,20.2,21,18.9
1956,18.8,19.7,21.9,23.6,24.1,22.4,21.4,21.7,20.8,21.2,20.8,19.9
1957,20.6,21.2,21.3,23.4,24.6,23.6,22.6,22,21.5,21.4,21.2,20.8
1958,18.6,20.1,22.7,24.3,24.7,23.5,21.8,21.8,21.4,22.2,21.3,20.9
1959,20.7,21.8,23.1,24.9,25.2,23.2,22.2,21.5,22.1,21.8,21,20
1960,20.8,20.2,21.8,22.8,23.9,23.4,22.3,22.2,21.2,22.4,21.8,20.4
1961,20.8,20.9,21.8,23.5,24.6,23.2,22,21.9,21.4,21.4,21,19.8
1962,20.3,20.6,21.1,23.3,24.7,23.2,22.5,22,21.5,22.1,20.8,20.2
1963,20.8,20.3,22.7,24.3,25.1,23.9,22,21.7,21.8,20.7,20.6,21.1
1964,20.8,21.1,22.3,24.4,24.1,22.5,21.9,22.2,22,20.4,20.3,19.3
1965,19.7,19.8,21.8,24.2,24.8,23.4,22.6,21.2,22.4,20.5,21.4,20.7
1966,20.6,21.4,22.8,22.6,24.8,23.4,22.4,21.9,22,21.1,20.7,19.6
1967,19.7,20.6,22.8,24,24.5,23,22.3,21.4,21,21,20.9,19.9
1968,20.4,19.8,21,23.1,26,21.9,21.8,22,21.7,22,21.1,20.3
1969,20,21.3,22.8,24,24.6,24.3,22.6,21.5,21.4,22.4,21.5,20.4
1970,19.6,21.2,21.4,23.3,23.5,23.5,21.9,22.1,20.9,22.2,20.1,19.4
1971,19.5,19.5,21.3,22.7,22.3,22.7,21.6,21.3,20,21.5,19.2,19.7
1972,20.4,20.3,22.8,23.9,24.7,22.6,22.1,21.5,21.9,22.5,22.6,21
1973,21.2,21.7,22.6,24.2,24.3,22.7,21.8,21.3,21.4,21.8,22.6,19
1974,19.4,20.2,21.7,23.1,23.6,22.1,21.2,21.7,21.3,20.3,20.4,20.2
1975,19.1,19.9,22.6,24.1,24.5,22.1,21.4,21.5,20.5,21.1,20.8,18.9
1976,18.7,19.6,22.1,23.2,24.7,22.8,22,21,21.4,21.3,20.2,20.4
1977,19.8,20.2,21.3,22.3,23.9,23,21.1,22.9,21.8,21.5,22.9,19.6
1978,19.9,20.1,21.7,24,23.4,22.7,21.7,22,21.4,20.6,21.3,20
1979,19.3,20.5,21.9,23.3,23.5,22.8,21.5,21.5,20.6,21.3,20.6,19.9
1980,19.2,20.4,22.2,24,24.5,23.7,22,21.8,21.2,21.5,20.5,20
1981,18.4,20.4,21.2,23.2,22.7,22,21.5,21.9,21.6,21.9,20.3,19.8
1982,19.2,21.1,22.4,24.8,24.7,24.2,21.9,22.3,22.1,21.2,20.9,20.2
1983,19,19.3,20.9,23.2,26.2,24.2,22.1,22.3,21.5,21.4,21.4,20.6
1984,19.8,20.4,22.4,24.6,24.3,22.3,20.9,21.4,20.4,21.8,20.5,19.7
1985,19.5,20.4,22,21.9,23.6,22.9,21.4,21.8,21.8,21.6,20.9,19.9
1986,19.3,20.2,20.2,23.3,23.5,22.2,22,22,22.1,21.4,21.9,21.1
1987,19.9,21.5,21.6,23.9,23.7,24.1,21.6,22.8,22.5,20.9,21,20.4
1988,20.1,20.8,22.2,23.3,22.6,22.2,21.9,22.6,21.9,21.4,21.8,19.3
1989,20.1,20.1,21.1,22.4,24.2,23.5,22.1,22.1,20.7,21.6,21.9,19.8
1990,20.3,20.7,23.1,23.5,25.3,23.6,22.2,22.3,21.9,21.6,21.5,20.6
1991,20.5,21,23.3,23.2,24.6,23.4,22.9,22.1,20.8,21.2,20.8,20.3
1992,19.9,18.8,22.8,23,23.7,23.2,22.1,21.8,21.7,21.6,20.6,20.5
1993,20.3,21.5,21.9,23.6,23.8,22.9,21.2,22.1,21.8,21.3,20.5,20.4
1994,20.6,21.1,22.7,23.1,24.6,23.8,23,21.3,22.6,22.1,21.8,21
1995,20.9,21.8,22.7,23.3,24.1,23.8,22.5,22.2,22.4,21.6,21.6,20.2
1996,19.4,20.7,21.4,23.5,25.1,22.6,22.2,22.1,22.7,22.1,21.1,20
1997,19.7,21,22.3,23.2,24.4,24,23,23,21.8,21.9,22.4,19.9
1998,19.3,19.6,22.3,24.5,23.4,24.3,22.2,23.1,20.8,21.8,22.9,20.1
1999,19.2,20.5,21.2,24.8,24,23.2,21.7,22.5,20.8,21.3,21,18.3
2000,19.2,20.3,21.1,22.8,23.8,22.8,22.2,22,20.9,22.8,22.6,20
2001,20.5,20.8,22.1,22.4,23.1,22.8,22.2,21.9,20.6,21.6,20.5,19.6
2002,19.7,20.8,22.6,24.7,24.5,23.2,22.2,22.1,21.3,22.5,21,19.5
2003,20.5,20.9,20.9,25,24.5,22.8,22.6,22.7,21.7,22.2,22.1,19.2
2004,18.8,20.1,23,24.2,24.8,23.8,22.4,22.8,21.7,22.9,21.7,20.2
2005,20.7,21.5,20.8,25.7,24.4,22.5,22.2,21.8,21.9,22.3,21.7,20
2006,20,20.8,22.1,24.8,24.4,23.7,22.4,22.5,21.8,22.6,21.3,19.6
2007,21.4,20.6,22.9,24.6,24.3,24.1,22.4,22.4,22.3,21.8,21.3,20.4
2008,19.4,19.3,21.6,24.3,24.4,23.5,21.6,22.7,22.3,21.6,20.6,18.7
2009,20.7,22.1,23.4,24.2,25.3,24,23.2,23.3,22.3,22.9,21.1,20.3
