1901,22.8,22.7,20.5,20.3,16.6,14.7,13.5,15.3,16.4,17,19.4,21.5
1902,21.1,22.6,21.4,19.4,17.4,14,14.3,14.7,16.8,17.6,18.8,21.3
1903,22.8,21.9,20.5,19,17.5,14.2,13.8,15.9,16.2,18.4,18.8,21.2
1904,22.4,21.6,20.8,19.8,17.5,15.3,14.4,15.5,16.7,17.9,19.8,20.4
1905,22,21,19.7,19.9,17,14.1,14.6,14.2,16.8,18.1,18.7,21.1
1906,23.1,21.5,20.5,18.5,16.9,15.5,14.2,14.8,16.2,17,18.9,20.6
1907,21.6,22,21.7,18.3,16.5,14.2,13.8,15.7,16.8,16.6,18.4,20.1
1908,21.3,21.7,20.4,17.9,16.5,14.7,14,15.2,17.2,17.2,19.1,21.1
1909,21.8,20.8,20.1,19.4,16.6,15.3,14.7,15.7,16.1,17.6,18.5,20.7
1910,21.3,20.9,20.7,18.8,16.8,13.8,14.2,14.4,16.1,17.1,17.8,19.8
1911,21.5,22.5,21,18.8,16.1,13.5,13.5,14.7,16,19,19,21.4
1912,21.6,22.2,20.2,19.7,17.7,15.3,13.9,15.7,17,18.2,19.6,21.2
1913,22.5,22.9,20.1,19,17.7,15.4,14.7,16.2,17.6,17.9,20.1,21.1
1914,22.6,22,21.6,19.9,18,14.4,14.7,15.4,18,18.4,19.5,21.7
1915,23.6,22.6,21.6,19.5,16.7,14.9,14,15,17,17.6,19.2,20.6
1916,20.8,21.6,20.7,19.4,15.7,14.7,14.7,14.9,17.2,18,19.6,21.2
1917,21.6,21.4,21.4,19.1,17,15.1,13.7,13.8,15.9,17.1,18.2,20.5
1918,20.5,21.7,21.2,19,16.2,14.5,14.2,14.7,17.5,19.1,19.3,21
1919,21.9,21.9,21.5,20.7,16.6,15.4,14.8,15,16.5,18.4,18.5,20.4
1920,22.6,21.7,20.6,19.2,17.4,14.5,14.7,16,16.7,17.8,20.1,20.4
1921,21.2,22.4,21.6,18.7,16.1,14.7,13,15.1,16.4,17.7,19.6,21
1922,22.6,21.7,21.2,19.7,16.2,14.7,14.8,16,17.7,18.5,19.7,21.4
1923,21.7,21.9,22.2,19.4,17.4,15.3,15.1,15.7,17.5,19.7,20.9,20.8
1924,22.1,21,20.6,18.9,17.1,14.8,13.7,14.8,16.1,17.6,19.3,21.3
1925,22,22.8,21.3,19.7,17.6,14.9,14.8,16,17,18,20.3,21.9
1926,23.4,22.7,21.1,19.7,17.6,15,14.4,15.7,16.7,19,19.4,21.5
1927,22.6,22.4,21.2,20.5,17.2,15,14.8,15.6,17.8,18.6,20.1,21.4
1928,22,21.5,21.5,19.7,17.1,15.6,14.7,14.8,16.9,18.4,20.2,21.7
1929,21.8,21.6,20.1,19.6,18,15.1,14.4,15.3,17.7,18.9,20.1,21.8
1930,21.9,21.3,21.6,19.2,16.8,14.7,14.5,14.9,15.9,18.5,19,22.1
1931,22.2,23.3,21.2,19.4,18,15,13.9,15.9,17.1,18.9,20.2,21.7
1932,21.5,22.1,21.6,20.8,17.1,16,14.6,15.8,18.3,18.6,20.3,21.2
1933,22.1,22.4,21.7,20,18.1,15.6,14.8,15.8,17.1,18.8,19.2,21
1934,21.4,21.6,21.4,20.5,18.8,16.2,14.3,16.6,17.8,18.6,20.2,21.3
1935,21.4,20.7,20,19.4,16.9,14.6,14.9,13.9,16.8,18.7,18.9,20.2
1936,21.1,21.1,21.6,19.5,16.6,15.5,15.1,16.3,16.9,17.2,18.4,21.1
1937,22.3,23,22.4,19.9,18.5,15.7,14.6,15.8,16.8,18,20.3,20.4
1938,21.7,21.9,22.2,20.5,17.3,15.5,15.3,15.5,18,19.1,19.5,22.1
1939,22,23,21.2,19.5,17.9,15.5,14.2,15.3,15.7,19.1,19.5,20.8
1940,22.5,22.8,22.6,19.9,17.7,15.9,14.4,16.4,18,18.3,20,22.6
1941,22.6,23.2,21.6,20.9,18.7,15.7,15.1,16.1,17.5,19.9,20.5,22.8
1942,23.3,23.4,22.4,20.2,17.2,15.5,15.1,16.7,17.3,18.9,20.2,21.2
1943,22.7,22,21.6,20,16.8,14.8,14.3,14.6,16.6,18.7,21.2,21.5
1944,24.2,21.9,21.7,20,16.6,15,15.3,17.3,18,20,20.9,21.9
1945,22.1,23.2,21.1,20.3,16.7,14.5,14.6,15.5,18.9,19,20.9,21.7
1946,22.1,22.8,22.3,21,18.2,15.5,15.3,15.9,18.8,19.3,21.1,21.9
1947,22.5,23.3,21.4,20.3,17.4,16,13.8,17,17.3,19.3,21.2,21.4
1948,21.6,22.1,21.5,19.5,18.4,16.3,15.6,16.8,17.6,19.6,19.7,22.2
1949,23.3,21.7,21.1,20.4,17.1,16.4,14.9,16.5,18.2,19,20.1,21.8
1950,22,22.6,23.1,20.7,17.7,16.4,15.6,15.9,18.5,18.8,20.1,21.5
1951,20.8,22.2,21.6,20.3,17.4,14.4,14.2,14.9,16.8,18.8,20.5,21.2
1952,22.4,22.4,22.1,20.2,17.6,16.4,15.6,16.8,17.6,19.7,20.2,21.1
1953,23.3,22.7,21.4,19.7,18.2,15.6,14.4,15.6,16.6,19.4,20.4,21.5
1954,21.5,22.6,21.1,19.8,17.4,15,14,15.9,17.6,18.4,19.6,21.4
1955,21.5,21.7,20.7,19.8,17.3,15.6,15.4,15.6,16.4,17.4,18.3,20.6
1956,21.9,22.2,22,19.7,16.7,15.2,15.4,16.4,16.4,18.3,19.9,20.2
1957,22.9,23.6,21.7,19.9,16.6,14,15,15.4,17.9,19.1,20.9,22.3
1958,22.8,22.9,22.2,20.6,18.7,14.2,15.1,15.6,17.2,18.9,21.4,22
1959,21.8,22.4,21.9,20.9,16.7,14.8,15.4,15.6,17.1,18.9,19.7,21.4
1960,21.9,21.9,22.2,18.6,16.2,14.1,13.5,16.9,17.8,20,20.9,21.9
1961,23.1,23.2,22.6,20.3,17.1,16.4,15.4,15.3,18.3,17.9,20.3,20.6
1962,21.8,22.4,21.7,19.6,15.9,15.3,15.4,17,19,19.9,20.8,22.2
1963,21.7,22.6,20.4,19,16.2,14.5,14.1,15.9,19.7,20.2,21,21.4
1964,22,22.6,23.2,19.1,16.9,13.9,13.8,15.5,17.9,18.3,20.1,21.8
1965,22.4,23,22.1,19.5,16.6,13.2,14.7,16.6,18.3,17.4,19,21.1
1966,23.4,21.4,22.5,18.6,16.9,16,14.8,16.3,17.6,19,20.1,22.3
1967,22.2,22.3,21.3,19.9,17.6,15.1,13.3,16.3,18.2,19.2,20.8,22
1968,22.9,22.1,20.8,18.4,16.8,13.2,15,15.9,17,18.4,19.2,22.5
1969,24,23.9,22,19.6,16.6,14.7,15.5,16.8,17.2,19.3,20.3,21.6
1970,22.7,22.5,22,20,17.9,15.2,14.8,16.3,18.6,18.4,20.3,22.4
1971,22.2,21.9,22.3,20.5,16.6,15.2,14.5,15.6,17.2,19,19.7,21.3
1972,23.6,21.7,21.9,20.8,16.7,14.6,15.1,15.5,17.9,19.7,19.9,22.2
1973,22.3,22.3,23.2,19.3,17,15.6,14.9,15.1,16.8,19.1,19.9,21.2
1974,23.3,23.3,22.4,19.4,17.2,15.2,15.1,15.9,18.1,20,20.7,21.8
1975,22.4,22.3,20.9,19.9,17.6,15.8,14.9,16.4,18.7,18.5,19.3,20.8
1976,22.4,22.9,22.2,20.1,16.7,15.1,15,15.3,18.7,18.6,20.5,22.5
1977,23.2,24,21.3,21.4,17.5,16.2,15.3,15.6,18.9,20.1,20.5,23.2
1978,22.5,23.2,23.6,19.6,17.7,14.7,16,17.2,17.6,18.4,20.6,22.1
1979,22.3,24.4,22.1,21.6,18.4,15.9,14.7,16.6,17.2,19.1,20.3,21.5
1980,22,23.6,22.7,20.9,18.1,15.6,15.1,17,17.1,19.3,21,22.3
1981,23.5,22.8,22,21.1,17.6,15,15.1,15.4,16.2,17.8,20.9,22
1982,22.8,23.4,21.9,19.5,17.9,15.3,15.8,16.9,18.7,18.9,20.1,22.3
1983,23.6,22.9,22.7,22.2,18.6,16.3,15.6,15.6,18.9,18.9,20.6,22.8
1984,22.7,22.6,21.9,20.2,18,15.1,15.6,16.3,18.5,19.7,20.1,22.3
1985,24,23.7,22.5,21.1,17.5,16.1,15.3,17.9,18.5,20.4,21.8,22.1
1986,23.1,22.8,22.8,21.4,18.5,16.3,15.6,17.3,18.4,19.1,19.8,22.4
1987,22.9,24.8,22.7,21.7,19.5,15.2,15.1,15.8,17.8,18.3,20.5,23.2
1988,23.4,23.8,23.4,20.3,18.2,15.1,15.7,18,18.1,18.9,20.3,21.2
1989,22.8,22.4,23.1,20.6,18.5,15.7,15.3,18.3,17.8,18.5,20.2,22.5
1990,23,22.3,21.4,21.2,17.7,15.6,16.1,16,17.1,18.6,20.5,21.3
1991,23.4,23.7,22.1,21.4,18.6,15.8,15.8,16.6,18.7,19.5,21.3,22.3
1992,23,24.3,23,22.2,18.3,14.6,15.5,16.4,18.4,19.6,20.6,22.4
1993,23.1,22.6,22.5,21,19,16.5,17,16.8,18.9,19.5,20.6,21.7
1994,22.2,22.8,22.2,20.6,18,15.6,15,16.1,18.3,18.2,20.4,21.9
1995,22.8,23.6,21.8,19.2,17.5,15.3,14.8,16.7,18.6,19,20.2,20.6
1996,22.8,23.1,21.1,19.5,17.5,15.3,13.9,15.4,18,19.1,20.6,22.7
1997,22.8,22.7,21.8,19.1,16.8,15.3,15.1,17.2,18.2,19.2,19.3,21.4
1998,22.6,23.3,22.3,21.1,17.4,15.5,16,16.7,18.2,19.2,20.9,21.9
1999,23.9,23.6,23.2,21.5,18.4,16.3,16.4,17.3,17.8,19,21.6,22.9
2000,22.1,23.5,23,19.5,16.5,16.2,15.1,17.6,17.8,18.8,20.5,22.4
2001,22.7,22.7,22.9,20.6,18.1,16.3,15.9,17.4,17.8,19.8,21.2,22.2
2002,23.1,22.3,22.9,21.3,18.1,15.8,15.2,17.3,18.3,19.4,19.8,22.4
2003,23,24.4,23,21.7,17.7,15.6,14.9,16,17.5,19.1,20.8,22
2004,20.7,23.5,22.1,20.9,17.8,15.4,14.3,17.6,17,19.4,22.1,23.6
2005,22.7,23.7,22,20.2,18.2,16.1,15.5,17.3,18.7,20.2,21.2,21.1
2006,23.2,24,21.1,20.6,16.6,15.1,16.2,16.6,18.7,20.7,21.3,22.7
2007,23.3,24.1,22.1,21,17.6,15.7,15.1,16.4,19.3,19.2,20.4,21.7
2008,22.9,23.5,22.3,19.4,18.3,16,15.5,15.8,17.3,18.8,20.8,22.4
2009,22.6,23,21.9,20.1,18.1,17,14.8,16.2,17.8,19.4,19.8,22.7
