1901,21.5,24.2,24.8,29.3,32.8,35.5,34.3,33.1,31.9,30.1,25,20.7
1902,23.3,24.9,28.1,31.4,34.5,36.3,34.6,34.1,32.3,31.9,27.9,22.3
1903,22,24.4,26.9,30.3,33.7,35.5,33.1,31.9,31.1,32,26.6,22
1904,21.3,21.9,27.1,29.5,34.2,36.2,34,33.5,32.7,32.1,27.5,23.2
1905,22.2,22.5,26.8,31.3,34,35.2,34.1,32.8,31.7,30.4,26.3,22.6
1906,22.3,22.8,28.1,30.6,33.2,34.7,33.1,32.1,32,31.5,26.9,20.9
1907,20.9,22,25.9,29.7,33.7,34.3,34.1,32.8,32.5,30.9,27,23.1
1908,22.8,23.9,27.9,30.3,34.9,35.9,34.1,32.5,33,32.1,27.6,23.3
1909,22.1,24.8,28.7,31.2,34.5,34.6,33.6,32.5,32.1,31.7,27.9,22.9
1910,21.4,24.6,28.2,30.1,34.1,36.1,32.7,32.4,33.2,32.1,27.7,23.3
1911,21,24.1,27.1,31,33.6,34.7,33.7,32.8,32.8,32.1,26.6,22.7
1912,22.4,26.6,28.7,31.7,35.5,37.1,33.9,32.6,32.3,31.4,27,22.9
1913,22.4,24.1,25.6,29.5,31.6,35.8,34.7,33.4,32.6,31.2,26.3,22.8
1914,21.8,22.3,27.4,31.3,35.2,35.3,34,33,32.2,31.5,27.5,22.2
1915,21.6,22,25.2,28,32.8,36,34.9,33.3,32.7,30.8,26.3,22.9
1916,20.9,21.8,24.8,27.8,32.4,35.6,34.4,32.7,31.5,31.2,26.3,23.5
1917,22.2,21.4,24.9,27.2,31.5,34,34.1,32.9,31.8,29.4,24.9,22.2
1918,22.6,21.5,23.9,27.4,32,35.7,34.5,31.9,31.5,30.3,25.4,22.3
1919,22.4,24.4,27.5,28.4,32.4,35.9,34.1,33.3,32.5,32,27.4,22.5
1920,21.6,21.5,25.4,28.4,32.1,34.8,33.3,32,31.5,30.1,25.1,22.2
1921,22.6,22.5,25.4,28.5,32.5,35.9,33.7,33.4,32.4,31.5,25.9,22.1
1922,21.5,24.5,25.9,28.6,33,34.3,33.3,32.2,30.7,30.7,26.6,21.7
1923,21.1,23.4,26.4,29.3,34.8,36,34.7,33.4,32.9,32.4,27.3,24
1924,22.7,23.6,28.4,30.7,35.5,34.7,33.8,34.1,32.5,30.3,25.5,21.3
1925,20.5,22.8,26.1,29.8,34.4,35.8,34.2,32.4,31.8,30.6,26.6,24.9
1926,24.1,24.8,27.4,31.5,35.1,36.7,34.8,33.5,33.6,32.3,24.7,23.1
1927,22,22.7,28.8,30.2,34.7,35.5,34.3,31.7,31.8,31.7,26.9,23
1928,19.8,22.2,28.9,29.7,33.5,36.2,34.9,32.3,31.3,31,25,21
1929,22.7,23.3,26.7,31,31.9,35,33.6,32.3,31.1,31.2,26.1,22
1930,20.2,21.7,25,29.2,32.4,35.5,33.8,32.9,33.2,31.8,28.1,22.5
1931,23.2,24,26,31.2,35.1,34.7,34.6,34.4,32.5,32.6,27.2,22.3
1932,22.7,23.1,24.8,30.6,32.3,35.5,34.1,32,31.7,31.4,25.8,21.4
1933,23.8,24.7,26.5,29.1,33.6,34.9,33.7,32.3,31.4,29.2,24.4,19.9
1934,21.6,24.3,26.9,32,34.4,36.5,35.1,33,33.7,32.3,28.3,24.4
1935,23.4,23.6,29.3,32.4,34.5,36.5,34.3,32.7,33.4,31.1,28.2,26.1
1936,24.7,25.2,28,31.8,33.2,35.4,33.5,32.4,33.1,31.7,26.7,23.7
1937,21.4,23.1,26.5,29.7,33.3,35.8,35.3,33,32.4,31.4,28.8,24.3
1938,22.6,26.9,27.8,31.4,35.1,38.3,33.7,32.7,31.5,30.7,27,22.5
1939,23.2,23,27.6,31.6,34.7,36.9,34.3,33,32.6,31.5,27.7,24.3
1940,22,23.9,26.7,28,32.7,36.7,34.5,33.1,32.5,31.1,26.3,22.4
1941,23.6,24.8,27.1,29.3,33.4,36,34.1,33.8,31.6,34.2,27.1,22.3
1942,20.9,23.8,27.6,31.7,35.4,36.2,33.8,32.2,33,29.9,27.5,22.2
1943,21.3,23.5,27.3,30.8,34.7,36.1,33.8,31.9,31.8,31.8,25.7,21.5
1944,21.3,25,26.6,30.6,35.2,35.9,34.8,32.6,32.2,31,27.2,21.3
1945,22.7,23.7,26.6,32.8,33.9,35.7,33.6,32.1,32.1,30.7,27.4,24.4
1946,20.8,22.4,27.4,30.3,34,35.7,34.3,32.3,32.1,31.1,27.6,22
1947,21.7,24,28.8,32.4,33.4,36.2,34.6,32.1,32.7,31.7,26.9,22.5
1948,21.1,23.8,27.3,29.3,33.8,34.9,33.8,32.5,32.8,31.5,26.9,22.2
1949,21.2,22.7,25.5,29.9,33.7,35.7,33.9,32.4,32.2,31.4,26.2,24.6
1950,20.5,24,27.7,27.6,33.6,36.9,33.2,31,31.1,30.2,26.8,21.5
1951,21,22.8,26.6,30.1,33.4,35.8,33.4,32.3,30.6,28.9,26.4,20.6
1952,19.1,22.5,27.4,27.3,32.7,36,33.1,32,30,29.4,27.2,20.8
1953,24.7,22.8,25.3,30.7,33.9,34.5,33,32.4,31.7,30.8,27.6,21.8
1954,21.4,21.6,26,28.1,34.2,35.2,32.7,31,31.7,31.1,26.7,22
1955,22.6,25.2,27.7,29.4,33.7,35.2,32.5,31.3,31.2,30.7,28.6,21.5
1956,23.1,22.9,25.6,28.6,33.4,36,33.4,32.2,30.3,29.1,26.9,19.8
1957,20.6,23,26.7,28.7,31.2,35.5,33.1,31.5,31.3,29.8,26.2,21.7
1958,23.3,25.3,27.7,30.3,33.5,35.3,33.8,31.1,31.7,30.1,25.5,21.1
1959,22.4,21.9,25.9,30.7,33.6,36.2,34.2,31.8,32.4,31,25.6,21
1960,21.5,26,25.4,27,34,34.9,33.4,33,31.3,31.4,26.8,19.4
1961,20.8,22.8,26.8,30.1,34.5,34.9,33.1,32,31.7,30.4,27.1,22.6
1962,22.7,23.2,26.2,28.5,32.7,35.2,34.1,32.6,32.1,31.9,26.9,21.8
1963,23.2,24.8,25.8,28.5,31.9,35.4,33.7,31.8,32.4,30,26.6,21.1
1964,22.8,25.6,29,29.9,35.6,35.8,33.8,32.1,31.4,31,25.6,23.1
1965,20.1,24.6,26.2,28.2,33.7,34.7,34.2,31.3,31.7,30.8,26.1,21
1966,23.1,26,27.9,31.7,34.1,35.8,35.3,34.4,31.2,28.8,25.4,23
1967,22.6,23.2,25.6,28.5,35.4,34.8,33.7,31.7,30.2,30.3,26.6,20
1968,20.8,25.1,25.7,29.4,33.2,34.8,34,33.6,32.7,30.7,26.9,23.9
1969,24.4,28.3,30.7,28.1,34.5,34.9,33.6,32.3,31.6,31.8,26.8,23.1
1970,23.3,26.1,28,30.6,34.4,36.3,36.6,32.5,33.8,31.5,27.4,22.4
1971,23,23.6,26,30.4,31.4,34.7,34,32,31.9,31.9,26.2,23.5
1972,22.3,23,26.2,29.3,32.9,34.8,35.5,35.2,31.6,32.8,27.1,21.3
1973,21.3,23,27.8,30.9,35.9,35.4,33.9,32.9,33.1,34,28,19.5
1974,21,28,24,27.8,34,36.5,32.4,32.1,32.2,29.8,27.4,22.2
1975,22.3,23.9,26.6,28.4,32.1,35.7,32.5,32,31.5,31.4,25,24
1976,19.8,21.1,25,29.8,32.5,34.7,34.6,32.9,32,30,28,21.9
1977,23.5,24.1,30.9,30.9,33,36.5,35,34.2,32.6,32,26.4,24.1
1978,23.8,25.9,27.3,29.8,34.3,35.3,33.2,32.9,31.6,30.9,26.5,23
1979,24.3,25.3,27.4,31.5,34.8,36.4,34.1,33.7,32.4,31.3,27.5,23.1
1980,23.6,24.3,27.9,32.8,33.1,36.2,34.2,33.1,32.9,31.2,27.1,21.6
1981,22,24.1,28.9,31.1,35.1,34.8,34.7,33.1,32,32.3,27.6,23.3
1982,21.6,23.5,27.1,30.4,33.2,35.8,34.8,32.9,33.6,31.1,26.2,20.7
1983,23,25.4,30,32.3,35.7,36.2,35.4,33.9,34,32.3,28.4,21.8
1984,21.4,23.1,27.1,31.1,33.8,34.3,33.9,34.2,32.9,31,26.4,26.1
1985,21.5,26.4,26.8,29.2,33.2,36.2,33.4,32,32.5,31.4,27,21.3
1986,20.4,23.3,25.2,31.4,34.1,36.1,33.5,33.1,31.6,30.9,25.6,21.1
1987,23.2,24.7,27.3,33.2,37.5,36.7,35.7,34.2,32.8,32.1,28.2,23.8
1988,21.1,24.4,28.2,31.1,34.6,35.6,34.1,31.8,31.8,31.7,26.9,20.5
1989,22.1,19.9,27,29.5,35.3,36.3,33.2,33,32.9,32,28,24.4
1990,20.6,25.6,30.2,30.1,34.1,36.4,34.6,33.4,33.1,32.6,27.2,22.3
1991,24.1,23.6,26.5,30.3,33.1,36.9,34.7,33,32.7,31,27.7,23.9
1992,23.8,25.2,25.8,30.4,35.4,36.2,34.1,32,33.6,31.2,26.3,23.8
1993,22.5,24.6,28.6,29.6,34.9,36.8,34.8,33.2,32.1,31.6,27,22
1994,20.5,23.4,26.7,30.8,34,36.1,33.1,33,31.1,30.9,28.6,23
1995,20.7,24.5,26.8,29.3,35,37.8,35.6,32.9,32,31.9,28.8,22.4
1996,24.7,26.6,26.8,30.8,34.7,37.4,35.2,33.3,33,32.1,26.9,23.2
1997,23.1,25.8,27.5,28.4,34.6,36.3,35.3,32.7,32.9,32.1,29.2,23.2
1998,22.7,27.8,32,32.5,34.1,37.2,34.2,33.2,32.1,31.7,27.9,22.9
1999,21.1,22.6,27.1,31.8,35.4,36.9,33.6,32.8,33.1,31.3,28.2,22.9
2000,22.8,24.4,29.3,33.2,35.1,35.3,34.2,33.2,33.1,29.8,26.9,23.3
2001,23.8,24.7,29.9,33.8,34.8,36.4,34.4,34.2,33.8,32.4,28.1,25.7
2002,23.1,24.4,27.3,30.5,34,36.4,34.7,34.4,33.6,31.5,28.1,24.3
2003,21.8,25.2,29.2,32,35.6,36.7,34.3,33,31.8,32.1,27.7,23
2004,23.6,25.2,28.2,31.4,34.8,36,34.5,33.6,32.6,32.4,27.8,23
2005,22.8,23,28.8,31.3,36.2,36.7,33.8,33.1,32.3,32.1,28.5,25.2
2006,22.7,24.1,28.9,32.5,33.7,36.7,35.3,33.7,32.5,32.6,29.2,22.6
2007,23.9,25.5,27.7,30.8,35.2,36.4,35.1,33.1,29.4,32.2,28.2,23.2
2008,21.9,26.6,30.8,33.2,35,35.8,34.1,32.3,32,30.9,28.1,23.1
2009,20.9,24.2,27.4,31.3,35.8,36.4,34.5,34.2,32.8,32.3,28.4,25.7
