1901,20.4,25.6,27.7,31.5,32.4,32.9,30.3,29,29.7,30,26.9,21.6
1902,21.2,25.1,28.5,33.3,34.5,31.2,30.5,29.2,29.4,28.4,27.8,23.2
1903,22.8,25.8,28.9,32.3,33.9,32.8,29.9,28.6,29.3,30.6,26.9,23.2
1904,22.4,24.5,29.2,32.2,34.4,33.3,30.3,29,30.1,30.7,27.5,23.8
1905,22.4,23,28.2,33.5,33.7,32.4,30.3,27.8,29,30.9,27.3,23
1906,22.9,23.1,29.4,33.6,34,32.4,29.4,27.1,29.1,29.4,26.3,22.3
1907,22.1,22.7,26.7,30.3,33.3,32.2,32.2,28.1,29.8,31.2,27.4,22.7
1908,22.6,24.3,28,32.4,33.8,33.4,31,27.9,29.8,29.7,27,23.2
1909,22.7,26.8,31.2,32.7,34,31.4,29.3,27.5,29.7,29.5,27.8,23.5
1910,20.3,24.2,28.9,30.6,33.1,33.4,30.8,28.8,29,29.4,27.4,23.7
1911,22,24.2,27.2,31.7,32.5,31.3,30.4,28.3,29.4,29.5,25.2,20.7
1912,21.8,26,28.9,32.4,33.2,32.1,30.9,28.7,29.4,29,24.3,23.1
1913,23.1,24.8,26.8,31.8,33.5,33.5,32.2,30.2,30.2,29.6,24.5,21.8
1914,24.3,24.5,28.7,31.8,34.7,33.8,30.6,27.3,28.1,28.9,25.9,21.1
1915,20.3,23.9,30.2,30.8,33.9,31.3,30.5,28.9,29,28.8,26.1,21.9
1916,20.1,22.7,28.6,30.3,32.5,31.5,30.5,27.4,27.6,27.9,24.1,23.5
1917,22.9,25.5,26.6,30.5,31.9,31.3,30.3,29,27.8,28.2,23.2,22.7
1918,21.5,21.6,25.2,30.7,32.4,32.9,30.4,26.6,27.6,29.2,25.8,23.4
1919,22.9,25.9,29.2,32.1,33.9,32.9,30.3,29.1,29.7,30.3,27.3,23.4
1920,22.8,25.5,28.9,32.1,33.8,32.8,30.2,28.9,29.6,30,26.9,23.4
1921,23,25.7,28.9,32.1,33.9,32.8,30.3,29.1,29.7,30.2,27.1,23.4
1922,22.8,25.9,29,32.1,34,32.7,30.2,26.8,27.1,28.6,25.8,22.3
1923,20,23.6,28.5,28.9,32.2,31.7,29.7,27.6,27.8,28.9,27.7,24.6
1924,23.1,27.9,30.3,32.2,33.4,31.5,29.2,27.5,29.7,30.5,28.2,22.4
1925,18.9,26.4,29.8,32.6,34.7,33.2,31.7,31.6,30.7,27.7,25.8,24.2
1926,22.8,22,26.3,29,31.5,30.7,29.3,29,29.1,29.5,25.6,22.2
1927,18.3,21.8,27.1,31.1,32.2,31,28.8,26.6,27.7,28.8,24.9,21.5
1928,17.8,22.7,26.1,31,32.6,32.6,29.6,27.6,29.7,29.3,25.3,21.9
1929,20.7,22.7,26.6,31.5,31.8,30.1,29.5,27.2,29.2,28.9,24.5,20.5
1930,20.4,24.3,26.7,30.7,31.2,30.8,28.5,26.8,28.6,28.8,25.8,23.1
1931,23.2,24.1,28.9,32.7,33.5,32.3,30.3,30.1,28.8,29.2,26.2,23.5
1932,21.8,23.9,26.7,32.6,31.8,33.8,29.9,28.3,29.1,29.6,25.4,21.1
1933,23,25.8,28,29.5,34.5,31.3,29.3,27.5,28,28.9,24.9,21.9
1934,20.1,23.7,25.8,30.5,35.3,31.7,29.5,27.2,30.8,27.7,25.5,21.7
1935,23.4,26.1,31.7,34.3,35.6,33.8,31,29.1,30.8,31.7,28.7,26.3
1936,23.8,28.6,30.4,32.4,33.4,32.8,30.2,28.5,29.9,30.7,28.4,23.8
1937,23.5,26.4,30.3,34.2,35.4,34,31.1,30.4,30.4,30.7,29.4,25.4
1938,24,28.6,29.9,33.9,35.7,35.4,31,29.4,30.4,31.9,28.8,25.4
1939,24.5,25.4,29.8,33.7,35.2,33.5,31.1,29.2,30.3,31.4,29.1,25.4
1940,22.9,25.8,29.1,32.1,34,33.1,30.4,29,29.8,30.1,27.1,23.4
1941,23.5,24.5,29.1,30.9,33,31.6,29.5,28.7,29.4,30.3,27.6,24.4
1942,21.5,25.5,29.4,32.6,33.6,33.2,30.4,27.4,30.1,29.6,28.5,22.5
1943,21.3,24.3,29.3,30.2,33,32.2,29.2,27.2,28.3,29.9,25.7,24.5
1944,21.5,25.1,27.2,31.8,33.8,33.8,30.6,28.8,29.2,30.3,28.3,23.7
1945,23.4,25.8,28.2,31.5,33.3,33.6,30,27.3,28.7,29.1,27.2,23.5
1946,24.6,23.5,30.2,31.9,32.7,32.5,30.1,27.5,28.7,29.1,27.3,21.6
1947,22.3,26.6,28.9,30.9,34.3,33.7,31.7,29,29.6,30.3,26.9,23.7
1948,20.9,26.1,27.6,31.7,34.3,31.7,29.8,28.2,29.6,29.8,26,23.1
1949,22,24.1,30.6,32.6,33.6,33.1,30.6,28.4,29.4,29.8,27.3,24.9
1950,21.6,24.8,28.6,32.2,33.9,33.4,29.4,26.8,28.5,29.4,26.6,23.2
1951,23,27,29.7,32.1,34,33,30,28.6,28.8,29.6,27.3,23.9
1952,21.6,24.4,28.8,31.4,33.9,33,29.6,27.1,28.2,29.4,27.4,22.7
1953,24.5,25.9,27.7,31.9,33,30.5,28.6,28.1,28.9,29.6,27.8,22.7
1954,22.5,24.6,28.6,31.1,33.6,31.5,28.5,27,29.2,29.2,27.3,23.9
1955,24,26.6,29.7,31.2,33.5,31.8,29,27.6,28.6,29.5,27.4,23.5
1956,23.2,27,28.4,32.4,33.7,32.4,29.1,27.8,28.5,29,27.3,23.3
1957,21.4,25.6,28.4,31.1,32.8,32,29.7,28.1,29,29.4,27.1,23.8
1958,24.3,25.7,30,33,33.9,32.1,28.8,27.7,29.1,29.7,27.4,23.6
1959,23.4,25.7,30,32.5,33.5,33.3,30.6,27.3,28.7,30.2,27.5,22.5
1960,22.7,26.7,28.1,31.5,32.7,32.8,29.2,29.1,29,30.5,27,22.2
1961,21.8,24,27.6,31.8,34.5,32.7,29.6,28.2,29.5,30,27.3,22.9
1962,22.6,26,27.8,31.2,34.1,32.5,30,27.4,29.1,30.4,27.8,22.1
1963,25,28.8,27.8,31.5,31.7,32.9,31,29.1,30.3,28.8,27.1,23.4
1964,22.9,26.2,30.6,31.1,33.4,31.6,29.5,27.7,28.6,29.3,26.5,24.9
1965,22.3,26,28.9,30.3,34,32,30.1,27.9,28.8,30.3,26.7,22
1966,23.2,26,29.4,32,34.1,32.8,31.2,28.8,28.7,29.2,27,24.2
1967,21.4,25.6,28.2,32.2,33.9,32.1,29.8,27.5,27.9,28.9,26.5,21
1968,20.8,26.8,28.6,31,32.5,31,29.2,28.9,28.4,29.7,26.9,24.3
1969,24.1,27.5,31.3,31.1,34,33.8,29.4,28.1,29.3,29.1,27,23.5
1970,23.6,26.5,28.5,31.9,33,33.1,29.9,28.4,28.5,29.9,26.7,23.3
1971,21.7,25.9,29.4,32.8,33.8,32.8,29.9,27.6,28.6,29.2,27.1,24.3
1972,23.2,25.5,28.8,31.6,32.5,31.8,31.6,29.7,30.5,30.6,27,24.1
1973,22.1,25.7,29.1,32.9,34.8,33.6,30.9,29.4,30.2,29.9,27.4,21.8
1974,21.4,24.1,29.1,31.3,34.1,32.8,29.1,28.4,29.5,29.4,26,23
1975,21.4,23.6,28.4,32.1,33.5,32.7,28.9,29.1,28.6,29.6,25.1,24.6
1976,21.7,24,26.9,31.5,32.9,31.8,29.6,28.5,28.8,29.5,26.7,23.4
1977,24.9,25.3,28.8,32.2,33.5,33.3,30.8,29.2,29.5,30.8,26.2,23.8
1978,24.6,27,29.2,31.7,34.4,32.7,29.6,29.7,29.2,29.7,27.5,24.8
1979,26.8,24.4,30.1,31.7,33.3,32.2,31.2,29.3,29.3,30.4,27.1,23.3
1980,26,26.5,30,33.7,34.6,33.5,29.4,28.5,30,30,27.9,22.9
1981,21.7,26.5,30.4,33.4,34.1,33.7,30,29.2,29.9,30.7,26.6,23.7
1982,21,25.5,29.1,33.2,34,33.2,31.5,29.7,31.2,30.7,26.6,22.4
1983,21.6,27.2,29.2,34.5,36.3,33.3,31.7,30.3,31.4,30.7,28.1,23.3
1984,22.7,24.3,30.1,33,34.9,33.6,31.4,31.5,31.4,31.3,28.2,23.2
1985,24,26.5,30.6,32.1,34.8,33.2,30.2,29.1,30.6,30.9,28.3,22.8
1986,21.3,26.5,28.1,34.1,34.7,33.6,30.1,30.6,29.3,31,27.1,22.4
1987,24.2,27.2,29.8,32.6,36.4,33.6,32.4,30.5,31.8,32.1,28.7,25.1
1988,22.4,26.8,31,33.7,35.1,34.3,30.3,29,29.9,31.2,27.1,22
1989,22.8,25.3,29,32.7,35,33.8,30.3,28.1,31,30.9,29.5,25
1990,23.2,26.4,30.1,34.1,34.9,33.4,30.5,30.5,31.4,31.9,28.5,25
1991,24.9,26.2,29.9,32.6,33.9,33.5,30.1,29,31.2,30.3,27.5,22.3
1992,20.4,26.4,28.1,32.3,33.6,33.9,30,28.5,29.9,30.9,26,24.9
1993,21.7,26.4,30.7,34,35.7,33.3,30.5,29.4,30.5,31.4,28.2,23.5
1994,21.3,25.8,29,32.7,33.8,33.2,30,27.9,28.6,29.1,27.1,23.1
1995,20.4,24.9,30.7,33.2,34,34.6,31.1,29.1,30.4,31,27.8,24.7
1996,25.6,27.9,30.2,32.8,32.8,33.9,31.6,29.3,29.4,30.9,26.5,25.1
1997,25.8,25.3,27.9,32.4,34.7,32.3,31.6,30.6,31.1,31.9,27.9,24.9
1998,23.7,28.4,29.8,35,35.5,33.6,31.1,30,28,31,27.4,24.2
1999,22.8,23.1,30,33.1,35.1,34.6,30.2,27.5,28.3,30,27.6,23.5
2000,25.5,24.2,29.4,34.4,34.3,33.1,30.4,29.5,30.5,30.3,27.5,23.6
2001,23.3,25,30.7,33,34.9,32,30.2,28.8,30.3,30.7,27.9,26.2
2002,23.2,25.5,30.9,33.2,35.7,34.1,31.8,29.7,31.6,30.8,28.5,25.5
2003,23.7,28.1,30.5,34.6,35.3,32.3,29.8,28.3,28.9,31.1,29,23.5
2004,23.4,27.5,29.2,33.6,35.4,33.4,29.4,29.3,30.2,31.3,28.9,26.4
2005,23.1,27.7,31.4,34.2,35.2,33.4,29.9,29.6,30.6,31.4,28.6,25.3
2006,23.4,25.6,30.6,33.7,34.5,33.6,31.3,29.2,30,30.9,28,23.4
2007,23,26.5,30.1,33.8,35.1,34.5,30.5,28.6,30.2,30.1,30.2,23.4
2008,20.4,25.6,30.6,32.7,34.5,34.1,30.4,28.5,30,30.5,27.5,23.5
2009,21.2,27.6,31.8,33,34.6,33.7,31.3,29.7,29.3,30.1,26.4,24.9
