1901,20.1,20.6,19.5,17.7,16,13.4,15.2,14.7,15.8,18.7,18.4,18.8
1902,20.9,22,20.6,19.5,17.2,15.9,16.1,13.4,17,17.5,21,20.7
1903,19.4,21.5,21.7,17.6,15.2,15.4,13.5,15.2,16,17.5,19.3,20.9
1904,20.7,20.6,20.9,18.1,14.5,13.1,14.5,15.1,16.8,17.6,19.3,19.7
1905,20.1,22,19.4,18.7,17.1,14.7,14.4,15.2,16.7,19.9,18.9,20.7
1906,20.2,20,19.8,18.5,17.4,15.7,15,16.1,15.8,18.9,19.3,20.2
1907,20.5,21.1,20.8,18.8,14.2,14.7,13.2,14,17.4,17.4,19.1,21.1
1908,20.6,20.5,19.5,18.2,15.7,14.9,15.3,13.6,15.9,17.7,19.6,20.8
1909,21.2,22.4,19.6,17.6,14.6,14,15.7,15.1,16,16.8,19.3,18.6
1910,21.6,21.3,21,19.6,14,15.6,13.1,15.7,15.8,16,17.8,18.7
1911,21.6,21.1,19.1,17.9,16.2,13.1,12.5,14.3,16.2,17,20.6,20.7
1912,20.8,22.1,20.1,18.3,17.8,15.5,13.2,15.6,14,16.7,20.5,19.7
1913,20.6,21.6,21.4,19.2,16.6,14.2,15.7,15.8,17.1,18.2,19.1,19.4
1914,22,21.2,21.8,18.7,15.6,17.6,17,16.2,18.3,19.4,20.7,19.6
1915,22.2,22.6,20.8,20.8,19.5,14.8,15,16.7,17.1,17.6,18,19.7
1916,21.1,20.3,19.8,18.4,17.2,16.3,14.5,15.5,17.9,17,19.4,19.3
1917,20.6,20.7,20.1,17.6,14,13.1,13.4,13.8,16.5,17.4,16.9,19
1918,21.1,21.1,20.1,18.3,16.8,14.7,13.4,14,15.9,17.9,19,19.1
1919,19.6,20.5,20.6,19.8,19.2,17.4,15.7,15.7,14.3,17.8,19,19.9
1920,21.4,21.4,20.5,19.1,16.2,15.1,15.3,13.2,15.6,18.3,19.5,19.7
1921,21.1,21.6,21.3,18.4,16.7,14.2,13.5,17.2,16,17.2,18,20.4
1922,21.4,21.6,21.1,19.4,17,15.5,15,16.9,17.1,17.1,18.9,19.9
1923,21.2,21.1,21.1,20.3,16.5,15.2,13.5,15.7,16.5,17.3,18.9,21.3
1924,20,20.7,21.7,19.6,16.8,15.4,14.7,14.7,16.6,15.8,18.7,19.4
1925,21.7,22.1,20.3,20.6,17.1,13.6,12.7,17,17.2,17,19.4,20.4
1926,21.1,20,20.8,19,15.8,16.3,14.2,15.7,17.8,18.3,19.6,20
1927,20.6,20.8,21.1,19.8,15.7,14.3,14.1,15,16.8,17.6,20,19.6
1928,21.3,22.4,21.8,21.2,16.9,15.9,15.4,15.4,17.5,18.3,19.6,20.4
1929,21.7,21.8,20.6,17.4,15.6,15.8,15,15.9,17.8,19.5,18.2,20.9
1930,21.5,21.6,21.6,19,17.5,17.7,15.8,16.4,16.4,18.3,19.1,19.9
1931,22.3,20.7,20.9,19.6,16.5,14.7,15.5,15.6,15.9,18,18.9,21.1
1932,20.5,22.8,21.8,20.9,16.8,15.2,16.5,15.3,18.5,19.4,20.3,20.5
1933,21,22.3,20.3,18.1,16.7,14.3,14.1,16.1,17.1,18.2,18.2,19.2
1934,21.3,22.4,21.7,19.8,17.6,16.4,14.6,16.3,17.2,17.8,20.1,20
1935,20.4,21.1,20.9,17.7,14.6,16,15.7,14.9,16.2,17.7,18.5,20.7
1936,21.6,20.1,20,18.9,19,17,15.1,14,15.6,18.1,18.3,19.9
1937,19.3,21.4,20.7,18.2,15,15.1,15.4,16.4,16,17.1,17.9,18.2
1938,22.6,21.1,21.6,18.7,16,14.8,14.4,14.9,16.5,17.6,18.7,19.5
1939,21.1,21.6,21.5,18.9,17.6,15.4,13.1,16.3,15.3,18,19.3,19.7
1940,21.6,20.2,21.4,20.3,17.9,15.9,16.5,16.3,16.3,17.7,18.7,22.3
1941,23.5,23.7,21.4,22,18.1,14.9,14.6,17.7,14.8,18.8,19.8,20.6
1942,22.3,22.6,21.9,19.7,17.3,15.6,12.4,16.2,16.8,19.4,20.4,19.3
1943,20.9,21.9,21.9,18,17.9,17.1,15.6,15,16.8,18.8,20.1,19.8
1944,22.5,22.1,22.7,19.1,16.8,15.8,13.9,17.1,18.4,21.5,18.9,21.2
1945,21.4,22.9,21.1,19.4,15.9,14.6,15.6,18,17.1,19.8,19.8,20.2
1946,20.7,22.8,20.3,17.6,17.7,14.7,13.8,16.7,19.3,19.2,19.4,19.9
1947,22.4,22.3,19.8,18.4,17.6,16.9,13.5,14.8,16.4,15.8,17.6,18.6
1948,22.2,21.6,19.5,18.7,16.5,15,16.2,14,17.1,17.5,19.2,19.5
1949,21.1,20.5,22.4,18.1,15.9,16,15,15.9,16.8,17.5,18.5,19.8
1950,20.9,21.3,21.1,19.3,17.9,16.2,15.1,17.6,18,17.9,18.6,20.2
1951,20.7,21.5,20.6,16.7,16.3,14.6,13.7,14.6,17.4,18.7,19.7,18.8
1952,21.4,22.2,22,18.6,15.4,15.7,15.4,18.1,17.2,19.4,19.9,20.4
1953,22.4,21.4,21.8,18.8,17.5,15.8,13.7,16.3,18.4,19.2,19.3,20
1954,22.9,22.5,21.7,19,16.9,16.7,16,17,18.5,18.8,19.7,20.1
1955,21.5,22.7,21.4,19.4,17.1,15.6,15.4,15.8,17.7,17.5,18.1,20.7
1956,24.2,22.2,21,18.9,15.5,13.9,14.6,14.5,18.5,18.2,17.9,19.6
1957,22,21.1,21.3,18.9,16.6,15.6,15,16.6,16.8,20.4,19.8,21.4
1958,22.7,23.2,21,18.6,16.8,16.2,16.5,18.5,17.5,19.3,21.5,21.9
1959,22.5,22.9,20.9,22.2,18.1,15.6,17.5,16.7,19,20,19.9,20.7
1960,21.1,21,21.1,19,15.4,15.5,15.8,17.4,18.1,20.7,19.9,20.6
1961,22,22.3,21.2,20.6,17.5,16.8,16.5,17.8,20.4,21.1,21.5,20.7
1962,21,21.7,21.8,19.2,16.2,14.3,13.9,15.8,17.8,17.6,19.6,19.9
1963,22.8,21.8,22.9,19.5,16.7,15,16.2,17.5,20.5,20,21.4,20.5
1964,21.3,21.6,21.4,20.3,16.5,14.8,13.2,17,18.1,18.2,18.6,19.5
1965,20.5,21.9,20.2,19.9,17,17.3,15.7,17.6,19.5,19.3,20.6,21.9
1966,22.7,23.7,21.7,19.8,17.5,17.1,16.9,15.8,16.7,18.8,19.8,21.3
1967,21.5,22.5,21.3,19.8,18.3,16.5,16.1,18.6,18.4,21,19.5,19.2
1968,21.5,20.7,21.4,17.6,14.8,15,14.7,15.1,16.8,18.9,21,21.8
1969,23.1,23.1,22.1,19.1,17.6,16.7,15.8,17,18.7,17.6,20.5,19.5
1970,21.6,22.3,22.5,20.1,19.3,17.9,15.6,16.2,17.1,18.6,18.7,22.2
1971,23.7,23.3,22.6,19.6,17,15.4,15.6,17,17.9,18.2,18.9,21
1972,22.2,21.6,22.7,18.3,18.4,18.6,15.9,17.5,18.2,19.4,20.4,21.5
1973,23.4,24.1,21.5,22.7,17.8,17.8,17,16,17.1,18.4,16.6,21.3
1974,20.9,23.2,22,19.1,17.3,15.3,16.5,17.2,17.6,18.1,20.2,19.9
1975,21.6,23,22.8,19.1,16.9,16.2,14.7,19.1,19.4,19.2,20.3,21.9
1976,23.1,21.3,21.4,19.6,17,15.9,15.1,16.1,17.9,18,20.4,21.5
1977,23,24.3,23,19.6,17.8,17,19.1,16.8,18.9,20.6,20.7,20.4
1978,23.1,22.5,22.8,18.9,16.3,15.7,17,21.2,17.3,20.1,20,20.6
1979,19.6,22.3,20.7,19.2,18,15.8,15.2,18.1,17.1,19.7,20,21.4
1980,21.5,22.6,23.2,20.6,19.5,15.7,17.3,17.4,16.2,20.2,20.2,22.7
1981,22.5,23.8,22.2,19.7,18.8,16,14.5,17.1,19.2,18.7,21.4,21.1
1982,20.7,23.3,21.2,18.6,17,18.1,17,17.9,18.3,19.6,22.1,20.5
1983,22.8,23.5,21.6,21,19.3,19.4,17.5,17,16,19.2,21.7,21.7
1984,25,25.3,22.1,19.7,20.1,17.7,17.6,16,17.4,20.8,20.9,20.5
1985,21,23.3,22.8,21.5,17.6,15.3,15.5,18.1,17.7,20.3,21.4,21.5
1986,23.9,23.3,22.5,21.6,19.4,16.8,15.9,17.7,17.9,19.8,21.9,21.5
1987,23.6,23,21.9,21.8,17.5,15.6,18.6,16.5,17.2,20.1,21.5,22.1
1988,24.3,21.9,22.8,20.5,17.9,15.5,13.8,17.4,19.7,19,19.9,21.8
1989,22.9,23.3,22.6,21.6,17.5,16.3,15.1,16.9,17.9,18.1,20.3,21.1
1990,24,23.5,23.5,23,17.4,16.3,14.8,15.8,16.8,21.3,23.1,21.7
1991,22.3,22.2,21.5,20.5,18.6,17.8,16.2,17.4,17.5,19.9,21.8,22.5
1992,22.6,23.6,22.5,21,19.7,18.8,16.1,16,17.6,20.2,20.8,22.8
1993,23.5,22.4,22.9,21.2,18.4,16.5,17.6,16.1,17.5,21.1,23,21.5
1994,22.1,24.7,21.8,20.4,19,15.6,16.9,16.6,16.2,21.4,21.7,23.2
1995,24.1,23.7,22.6,20.9,18.3,17.3,18.4,19.9,18,19.3,21.5,21.8
1996,23.9,23.7,22.7,21.4,17.7,16.8,15,16.5,17.8,20.5,20.8,22.9
1997,22.5,23.6,21.9,20.5,17.9,16.5,16.6,18.3,19.8,20.7,22.3,23.7
1998,24.7,24.3,23.5,21.4,17.7,16.1,16.9,19.6,19.1,19.5,20.7,22.5
1999,23.9,23.9,23.5,19.4,17.5,16.6,17.3,17.2,18.8,18,19.3,22.2
2000,22.9,22.7,21.9,20.8,18.1,18.1,15.4,16.8,18.3,22.4,21.7,22.4
2001,24.3,24.3,24.1,22.8,18.3,17.5,17.3,18.6,18.6,20.7,21.9,21.6
2002,23,22.2,24.5,23.2,19.7,19.5,16.4,20.2,18.1,23.6,22.3,23
2003,23.1,25.7,22.9,21.7,18.3,19.1,17.8,16.1,18.4,20.5,21.5,22.3
2004,21.8,21.9,21.7,21.7,17.4,16.8,16.3,17.5,21.2,19.7,21.3,21.4
2005,22.8,22.7,22.9,22.6,19.8,18.8,17.1,19.4,18.1,21.4,20.9,20.9
2006,24.1,23.9,23.2,20.9,17.1,17.2,18.2,18.8,18.6,20.6,21.1,22.6
2007,23.1,24.1,24.5,22.2,17.8,18.5,16.5,18.4,20.5,21.7,20.6,22.5
2008,22,23,22.5,21.3,17.7,16.9,17.5,18.9,18,21.1,21,21.1
2009,22.7,24.1,24,20.8,19.5,16,16.9,18.3,19.8,20.3,24.3,22.6
