1901,20.1,19.9,23.2,27.4,31.2,32.2,32.5,31.4,30.9,28.5,25.2,21.8
1902,20.6,20.3,24.3,27.5,31.8,32,32.4,31.5,30.8,28.4,25.7,22.6
1903,19.6,19.8,24,28.1,30.8,32,32.3,31,30.3,28.5,24.3,20.4
1904,18.9,20.5,22.7,26.7,30.5,31.9,32.1,31.3,31,28.7,24.7,20.7
1905,21.3,20.1,21.6,26.5,31.4,32.3,32.5,31.3,31.1,28.6,25.4,23.6
1906,20.4,21,22.5,27.2,31.4,32.8,32.9,31.8,31.5,28.3,24.6,22.1
1907,20.4,20.2,22.5,26.6,30.7,31.6,32.3,31.5,30.8,29.2,25.9,21
1908,20.5,20,22.4,27,30.8,32.1,32.3,31.5,31,28.6,24.9,21.8
1909,20,20.7,23.4,27.2,30.2,32.3,32.4,31.7,31.7,29.3,25.5,21.9
1910,20.7,20.2,22.5,26.9,31.7,32.2,32.2,31.6,30.6,28.1,25.1,20.6
1911,19.6,20.3,23.2,27.1,30.7,32.7,32.2,31.7,31.2,28.1,25.7,22.6
1912,19.5,20.5,23.6,27.3,31.7,32.5,32,31.2,30.1,28.3,24.5,21.4
1913,20,20.9,21.7,27,30,32.1,32.1,31,30.5,28.3,24.6,21
1914,20.5,21.1,23.6,27.5,31.2,31.8,32.8,31,30.7,28.1,24.7,22.4
1915,20.3,21.5,23.2,27.8,30.2,32.3,31.9,31.6,30.7,29.6,25.1,21.6
1916,19.8,20.4,22.4,27.6,31.7,32.1,32.6,31.7,31,28.1,24.7,21.7
1917,18.8,20.1,21.7,26.7,30.7,31.9,32.2,31.2,31.1,28.7,25.2,20.8
1918,18.5,20.3,23.2,26.9,30.4,31.7,32.6,30.6,31.3,29.2,25.2,23.4
1919,20.6,19.8,24.8,28,31.3,32.7,32.6,32.1,30.5,28,25,22
1920,19.9,19.4,23.2,26.9,31.1,32.3,32.9,31.2,31.4,28,26,22
1921,19.9,20.3,23.3,28.1,31,32.6,32.4,32.1,30.6,28.4,24.9,23.1
1922,20.4,22.5,22.7,27.8,33.1,32.5,32.7,32,30.1,28.8,24.5,22.1
1923,22.2,20.5,25.3,27.7,30.3,32,32.7,31.4,31.3,29,26.3,22.3
1924,21.3,20.9,23.2,27,31.9,32.2,31.9,31.6,31.5,28.2,26.4,23.8
1925,18.4,18.5,23.2,24.2,30.9,32.2,33.1,32.4,31.3,28,27.2,23.2
1926,21,19.8,23,27.8,31.5,31.6,32.9,30.6,32,26.9,26.3,21.6
1927,21,19.7,21.8,26.1,30.8,31.9,33.1,32.5,29.7,28.1,26.8,24.2
1928,22.5,19.2,24,27.5,31.3,32.2,32.9,31.9,31.1,26.2,23.8,23
1929,21.8,21.1,22.9,26.3,31.7,32.6,32.7,31.8,30.3,28.7,24.3,24
1930,17.8,21.3,21.6,28.3,30.5,32.8,32.4,31.4,30.6,28.5,25.8,23.1
1931,21.8,22.8,24.9,30.3,32.6,33.4,32.6,31.6,30,26.5,24.5,21.7
1932,19.6,18.3,21.9,27.6,32.9,32.5,32.6,31.7,29.6,26.8,25,20.6
1933,17.4,20.2,22.9,28.6,31.2,33,32.6,31.3,30.4,27.4,24.6,23.5
1934,19.2,21.4,23.1,25.7,31.9,31.7,32.1,31.5,30.9,26.7,24.2,22.3
1935,20.9,21.7,24.2,27.5,31.4,32.7,32.2,31.6,30.2,29.5,26.2,20.4
1936,18.2,21,20.3,28.1,31.3,32.2,32,31.6,31.1,27.6,27.1,23.4
1937,20.4,21.7,24.4,27.8,30.4,31.9,31.8,30.9,30.9,29.8,25.6,23.6
1938,21.5,21.2,23.4,28.4,30.3,32.1,31.6,31.3,30.9,29.2,25,23.3
1939,21.6,21.7,23.7,26,31.4,32.3,32.1,32.1,30.8,29.5,26.6,20.7
1940,20.6,22.2,23.7,27.5,31,33.5,33.7,32.3,31.8,30,26.6,25.2
1941,24.3,22.8,24.9,27.7,31.9,32.9,33.3,31.9,31.1,28.6,24.9,22.9
1942,21.5,22,25.3,27.7,31.3,32.5,32.7,31.5,32.9,28.9,27.6,21.9
1943,19.7,21.3,24.8,27,32,33,32.9,31.8,32.4,28.9,25,22.5
1944,21.5,20.6,23.8,28.3,30.9,32.6,33.5,31.9,31.4,27.8,26.1,18.8
1945,20.1,17.7,23.1,27.2,30.4,33.3,33.2,31.6,31.8,27.4,27.6,23
1946,22.4,23.7,24.8,28.8,30.7,32.9,32.6,31.5,31.5,29,26.9,21.8
1947,21.9,20.2,22.8,26,32,32.2,31.6,31.8,30.7,28.2,26.6,21.6
1948,21.2,21.7,24,27.1,30.6,32.5,32.2,31.6,30.8,28.5,24.5,23.4
1949,20.9,23.1,22.9,26.5,31.5,32.5,33.3,32.1,31.6,29.1,25.4,22
1950,22.5,20.4,24.1,27.1,31.7,32.2,32.8,31.4,31.2,28.2,25.5,22.1
1951,19.1,21.9,21.5,26.8,31.2,31.1,32.4,31.7,30.8,28.4,25,23.3
1952,21.3,21.9,23,28.5,32.5,33.2,32.3,31.2,30,28.6,27.8,21.4
1953,20.9,20.8,24.2,25.8,31.4,32.5,33.6,33,30.7,30.3,26.3,22.7
1954,22,22.6,22.1,28.6,31.1,32.6,34.1,31.8,30.8,28.3,27.6,19.5
1955,18.5,22.9,24.4,27.3,32.2,32.6,32.5,30.7,31.6,28.7,24.8,23.7
1956,19.5,21.3,23.2,27.7,30.4,32.1,32.2,30.8,31.4,29.5,25.1,22.2
1957,21.6,17.9,22.3,27.6,32,30.9,32.5,32.5,31.4,27.9,26.8,23.8
1958,19.9,19.2,24.9,29.8,33.2,32.4,32.2,31.4,30.5,27.8,25.4,23.8
1959,18.7,21.6,22.7,28.5,31.1,33.2,31.7,31.2,30,29.9,26.7,22.7
1960,21.1,22.1,25.2,27,31.1,34.1,31.8,31.6,30.5,27.5,25.7,20.7
1961,19.8,19.3,23.4,28.2,31.6,32.4,33.1,31.5,30.4,28.8,25.1,22.4
1962,18,22.1,22.7,27,31.9,31.8,32.6,31.5,30.9,28.8,25,22.4
1963,19,19.7,23.1,26.9,32.7,32.7,31.7,31.8,31.8,28,26.1,22.1
1964,20.4,18.1,22.7,28.1,31.1,32,32.5,31.8,31,28.2,24.6,20.8
1965,20.8,22.2,22.3,27,30.8,30.3,32.7,31.6,30.7,28.7,26,21.9
1966,21.5,23.4,24.9,27.8,30.1,31.1,32.2,31.1,31,28.6,25.1,21.7
1967,18.9,18.2,23.3,26.4,31.9,33.3,33.2,31.8,29.5,27.6,25.1,19.2
1968,20.3,16.4,23.2,25.4,30.8,31.7,32.8,31.6,31,28,26.1,25.8
1969,21.4,19.4,23,27.3,32.1,32,32.5,31.4,31.2,29.2,23.6,21.4
1970,19.2,22.4,21.4,26.7,31.4,31.4,32.2,31.4,30.6,28.1,24.7,22.2
1971,18.9,20.1,23.1,28,30.6,32.2,31.8,30.1,31,27.1,24.7,21.7
1972,20,19.7,23.8,26,32.3,33.1,33.3,31.1,31.1,29,25.5,22
1973,19.8,24.6,25.4,29.3,31.6,32.2,32,31.2,29.7,27.8,24.7,21.1
1974,19.8,19.3,21.9,26.9,32,32.3,32.2,31.2,31.3,29,25.8,21.8
1975,20,22,24.2,28.7,30.7,32.2,32.6,31.6,31.4,28.7,23.7,19.9
1976,19.2,21.2,22.1,26,30.5,32.2,32.5,31,30.3,28.1,23,22.4
1977,16.8,18.4,24.1,27,32.4,34.2,32.3,32.1,30.6,29,24.2,23.3
1978,20.5,20.4,24,27.2,30.5,32.1,32.5,31.8,29.8,28.4,24.7,23.2
1979,21,23.4,24,27.1,30,31.4,33.8,31.4,31,28.7,25,23.8
1980,20.8,18.8,24.8,28.3,31.3,31.9,32.5,31.6,30.2,28.5,26.4,22.1
1981,20,21.2,24.7,28.2,29.9,32.1,31.8,32.7,31.5,27.9,24.4,20.7
1982,21.5,20.2,23.8,26.1,31.2,32.1,32.8,31.3,30,29.2,26,20.1
1983,18.3,20.1,22.2,28.7,31.9,33.4,34,32,31.5,28.2,24.5,20.7
1984,17.7,18.8,23.3,27.2,30,32.2,32.6,32,30.5,27,25.9,20.9
1985,18.5,20.6,20.6,26.5,31.5,32.6,32.6,31.7,30.4,28.7,25.6,21.9
1986,20.7,19.9,24.1,27.9,30.1,32.2,32.2,32.6,31.2,27.7,24.5,22.8
1987,22,22.8,25.3,27.8,32.2,32.9,33,32,31,29.3,25.4,21.4
1988,21,19.7,21.4,26.7,31.1,33,33,31.2,31.3,27.4,24.8,23.1
1989,19.2,20,22.2,27.6,30.4,32,32.7,31.9,31.5,28.7,25.5,22.2
1990,20.4,20.7,22.8,27.6,30.1,32.3,31.7,33,32.2,28.4,26.4,23.6
1991,20.2,22,23.8,28.3,32.1,32.5,32.7,31.6,32.6,29.1,25.2,22.3
1992,18.5,19.4,22.7,29.1,31.8,32.2,32.1,33.3,31.8,28.3,24.9,24
1993,18.6,22.4,23.8,27.6,31.2,33.3,33.3,32.2,31.7,28.8,26.4,22.1
1994,22.1,21.9,21.3,29.2,32,31.6,31.7,31.6,30.3,28.2,27.1,23.5
1995,19.1,19.4,23,28.2,31.5,32.9,32.3,30.9,31.8,29.3,24.9,22.1
1996,20,20.2,23.8,24.3,30.8,32.7,32.3,31.7,30.9,29.5,26.2,22.2
1997,21.2,19.8,23,26.4,31.6,32.7,31.5,31.9,29.7,29.4,26.8,22.5
1998,20.7,22.3,24.5,29.6,32.4,32.9,32.9,33.3,32.5,30.9,27.2,24.2
1999,21,22.5,24.6,27.8,29.2,32.8,32.5,31.1,30.8,27.9,24.4,20.3
2000,21.5,18.8,23.1,27,29.6,31.7,32.4,32.5,30.7,28.1,25.1,23.5
2001,21.5,20.9,22.9,28.1,29.7,31.6,32,31.6,30.3,28.5,24,21
2002,20.8,22,23.7,28.4,30.7,32.2,32,30.8,29.5,27.8,24.9,21.6
2003,20.6,22.5,23.2,28.8,32.3,32.5,33.3,31.9,30.6,28.8,26.5,21.2
2004,20.2,21,23.2,27.7,30.3,32.4,31.1,32.1,30.6,28.9,26.8,22.8
2005,19.2,21.6,21.9,27.2,33.1,31.8,32.6,31.6,31,28.6,26,20
2006,22.2,20.8,23.8,28.3,30.7,32.4,32.5,30.8,31,29.5,27.5,22.1
2007,18.7,24.2,24.3,27,30.9,33.5,33.3,32,29.8,28,24.1,23.1
2008,18.2,16.7,24.1,27.7,30.7,31.7,32.3,31.4,30.5,29.1,24.1,21.8
2009,19,25,23.9,27.5,30.1,32.9,32,33,32,29.6,26.5,22.8
