1901,21.5,22.7,26.8,26.3,29.9,32.9,35.7,35.5,34.7,30.4,26.1,22.8
1902,22,23.5,23.1,27.2,30.7,33.6,35.5,34.7,34.2,30.3,24.2,21.7
1903,22.1,21,24.8,26.9,29.9,33.6,36.3,36,34,30.6,27.7,23.8
1904,23.8,24.4,27.4,29.2,32.9,35.5,37.7,36.6,36.4,30.8,28.4,23.2
1905,22,23.3,25.4,27.9,30.4,35.8,37.3,36.2,35.6,31.9,23.5,20
1906,20,22,24.5,26.5,30.8,36.3,37.5,34.9,35.8,32,24.4,20.7
1907,19.1,24.5,24.9,28.1,30.5,34.7,37.4,34.9,34.9,29.4,24.8,23.5
1908,21.9,21.7,26,28.5,30.8,35.6,36,35.8,35.4,30.5,25.5,20.7
1909,23.5,22.9,23.2,29.2,31.2,37.2,38.9,37,36.3,32.9,26.3,18.7
1910,20,23.1,28.4,30.7,35.3,37.2,39.1,38.7,38.6,32.2,26.8,23.5
1911,21.8,20.6,26.1,28.6,31.4,36.1,38.2,37.2,36.7,31.2,25.4,19.9
1912,22.8,24.6,21.2,25.8,30.7,36.4,36.6,36.9,35.8,29,27,20.3
1913,19.6,20.5,22.7,28,31.2,34.6,37.1,37.5,37.1,32.2,25.8,20.8
1914,22.2,23.4,26.6,29.1,31.6,35.4,37.5,38.4,37,31.2,28.2,19
1915,20.3,21.2,25.3,27.4,29.8,36.3,37.9,38.6,35.1,33,26.3,21.8
1916,18.1,23.8,27.5,29.5,32.3,36.1,36.3,36.3,34.5,29.2,25.8,20
1917,18.2,21.7,24.5,27.3,29.4,36.4,37.7,37.3,36,33.4,28.5,25.8
1918,21.4,21.3,25.7,28.6,30.7,37.1,37.7,35.9,37.6,32.7,25.1,20.7
1919,21.7,20.6,24.1,29.1,31.8,37.4,37.1,37.4,35.5,29.3,25,22.7
1920,20.4,23,24.6,27.2,32.3,35.6,39.4,37.4,35.3,30.2,26.1,23.1
1921,21.4,24.6,27.6,29.1,30.7,35.5,38,36.9,37.1,32.7,28.2,23.7
1922,19.5,21.8,24,27,33.8,36.6,38,37,38.4,33.1,25.4,24.5
1923,25.1,23.8,26,28.4,34.5,33.6,37.2,37.5,35.4,32.2,27.3,22.3
1924,23.4,26.8,25.6,28.3,35,37.9,38.7,38.7,38.3,32.5,28.7,22.5
1925,23.6,27.5,28.9,30.4,34.4,35.1,39.1,37.6,36.6,29.6,26.2,24.5
1926,22.8,26.1,28.1,30.2,33.3,37.5,39,38.1,36.5,34,29.2,20.8
1927,23.6,25.2,26.8,30.9,34.8,35.9,38.9,37.4,36.1,33.2,27.7,21.4
1928,23.6,24.4,29,31.1,34.5,36.7,39.3,38.3,38.8,33.1,26.7,23.3
1929,22,23.2,27.1,28.6,34.9,36.7,39,38.5,36.6,34,26.2,26
1930,19.2,26.8,26.3,30.8,29.8,36.8,37.8,38.6,35.6,31.2,27.3,21.1
1931,23,23.2,27.3,30.5,34.1,36.3,39.8,36.1,35.7,31.4,23.7,21
1932,19.4,22.8,26.7,29.4,32.3,35.4,38.2,38.7,38.4,30.8,28.5,20
1933,19.3,20.1,26.2,26.7,31.1,35.8,39.1,38.2,37.7,34.5,28,23.6
1934,23.2,25.4,30.2,31.9,34.4,33.9,38.9,37.1,36.9,33.4,27,23.3
1935,21.2,23.9,23.8,29.1,30.8,37.2,38.1,36.4,36.7,31.1,24.8,22.6
1936,22,23.5,27.5,30.4,34.1,36.2,38.7,37.5,36.1,31.1,26.3,22.8
1937,17.5,21.9,24.7,28.1,33.7,36.3,39,38.8,37.3,33,27.4,24.3
1938,23.1,22.5,25,28.2,31.8,35.7,38.3,37,37.4,30.3,24.4,23.1
1939,20.7,19.1,25.3,28.6,32.8,36.3,39.2,37.5,35.3,32.1,27.6,25.9
1940,24.2,23.8,28.1,30.3,35.4,37,39.6,38.5,36.1,32.5,26,24.1
1941,21.5,24.5,26.3,27.5,34.3,35.4,38.8,36.6,35.1,30.2,27.2,23
1942,23,22.3,25.5,27.9,32.9,36.4,40.2,37.7,37.6,32.7,28,24.5
1943,22.9,25.6,27.7,30.7,34.7,35.9,39.9,38.1,38.5,32.9,27.2,22.3
1944,21.7,21.3,25.9,28.6,33,34.1,38.5,38.7,36.9,33,23.7,23.2
1945,21.4,23.7,24.1,29,32.9,35.5,39.1,37.8,37.6,32.9,26.8,22.9
1946,22.1,23.7,25.8,31.2,33.1,37.5,38.1,37.7,37.3,30.3,24.2,23.1
1947,21,25.5,26.9,29.4,33,35.6,39.3,37.3,38,32.7,24.7,21.5
1948,22.9,22.7,23.9,30.5,33.3,35.7,38.7,38.5,38.2,32.2,25.9,20.7
1949,16.2,21.1,25.8,30.7,32.5,37.1,39,38.7,38.8,32.1,31.4,22.2
1950,21.3,25.5,28.1,31.6,32.4,36,37.8,40,36.6,35.4,29.6,26.9
1951,22.3,23.5,26.7,28.7,33,36.6,39.7,37.8,38,33.3,27,21.5
1952,20.8,24.4,23.8,28.6,35.5,36.3,39.4,38.8,38.3,36.6,25.5,22.4
1953,24.7,24,26.6,28.2,30.6,36.4,39.2,38.3,38,33.7,28.1,23
1954,22.8,28.3,25,32.1,33.4,36,38,37.4,37.7,33.7,29.2,23.1
1955,18.4,22.5,27,28.4,31.9,37.3,37.3,36.6,38.6,34.3,26.8,24.5
1956,23.4,21.9,28.2,28.4,33.9,38.1,38.6,39.3,39.9,32.9,27.9,24.5
1957,21.2,26.5,26.5,29.2,31.6,38.1,40.5,38.2,37.9,30.2,25.4,25.4
1958,24.8,25.3,24.1,29.9,35.7,36.9,40.2,38.9,38.2,34.7,26.8,26.1
1959,24.9,22.7,28.8,31.5,31.9,38.1,38.9,37.5,37.5,33.4,27.9,21.6
1960,19.1,21.8,28.3,30.1,32.9,38.1,39.9,37.9,37.7,32,26.6,22.3
1961,23.6,25.4,26.8,30.5,32.9,36.6,38,37.6,36.2,33.2,25.1,21.6
1962,21.9,23.2,23.9,31.8,31.7,35.4,39.4,39.4,36.5,32.7,28,23.5
1963,20.3,27.3,26.4,27,33.9,34.5,38.9,37.2,39,33.4,26.5,24.3
1964,20.7,22,24,27.9,31.8,35.3,38.4,37.1,36.4,33.8,25.3,23.4
1965,22.3,23.8,25.1,29.4,32.4,34.4,38.9,38.6,35.9,35.9,28.1,21.9
1966,20.2,21.5,27.3,31.2,34.3,37.4,39.1,39.8,38.1,32.4,29,23.7
1967,22.9,25.5,28.5,26,33.2,35.3,38.8,38.8,35.3,33.4,28.5,19.7
1968,21.4,25.4,26.2,28.3,32.3,36.3,37.6,36.6,37.5,32.9,25.4,21.5
1969,22.9,22,25.2,29.7,33.6,34.9,38.4,39.6,36.7,31.3,26,22.1
1970,21.6,24.2,25.1,26.9,33.1,36.2,38.1,37.6,36,31.5,27.8,22.3
1971,22.3,23.7,27.4,28.2,30.7,35.4,39.2,37.4,37.9,30.2,26.1,20.8
1972,22.6,26,30.7,30.8,32.6,36.1,40,37.1,36.9,29.2,24.9,21.9
1973,21,23.3,23.4,28.4,34,37.6,38.6,38.6,37.8,33.9,26.9,24
1974,21.9,24.3,26.8,29.9,33.3,38.3,37.5,38.7,37.5,32.1,25.7,21.5
1975,22.5,23.4,25,26,31.8,36.5,37.9,39.4,38.3,31.6,26.4,22.8
1976,22.7,23.9,26.1,27.8,33,37.9,38.2,38.4,34.4,32,28,23.1
1977,21.8,26.2,24.8,30.8,30.8,38.2,39.2,38,37.7,34.2,28.8,24.5
1978,21,23,26.8,28.9,33.8,38.8,40.1,38.4,36.7,34.4,24.5,19.3
1979,18.5,22.7,25,29.1,32,37.6,38.8,37.5,38.9,32.9,26.1,24.7
1980,22.9,24.6,25.3,29,30.8,38,40,38.7,37.6,33,27.4,25.4
1981,24,25.5,25.2,29.7,31.4,37.9,39.2,39.5,37.5,30.6,28.1,24
1982,20.6,23.7,23.9,29.2,31.8,35,38.2,37.4,36.3,31.5,24.6,20.5
1983,21.7,22.1,24.3,26.1,32.8,35.6,39.1,36.5,36.7,31.1,25.6,22
1984,21.8,23.2,27,27.4,36.2,35.7,37.6,36.6,37.1,30.1,24.4,19.9
1985,20.2,21.4,23.9,29.6,32.7,37,39.7,38.6,34.5,31.2,24.3,22.2
1986,25,24.4,28.3,30.4,33.6,36.9,37.6,37.9,35.1,31.4,26.2,22.6
1987,20.3,23.4,24.3,30.8,32.4,36.9,38.8,38,38.3,34.8,26,20.2
1988,21.8,25.5,27.7,29.3,33,36.8,39.6,38.5,38.8,34.7,27.8,23.4
1989,20.4,24.3,29.6,32.5,34.3,37.5,40.8,39,39.3,34.5,28.6,24
1990,22.5,22.4,28.3,30.2,31.8,38.1,38.2,37.4,36.3,33.6,25.1,20.4
1991,20.4,26.1,23.1,28.4,31.5,34,37.7,38.2,36.7,33.8,25.2,21.2
1992,21.1,24.3,24.3,30.5,34,36.5,39.5,40.5,38.6,33.5,25.1,20.4
1993,21.4,21.6,28.9,32.7,35.1,38.4,38.4,38.7,38.5,33.9,25.5,22.8
1994,21.9,20.8,26.8,29.9,31.7,38.5,39.7,39.2,39,32.1,23.5,21.2
1995,20.7,26,26.5,28.3,32.8,35.6,39.9,40,38.3,34.3,29.1,23.3
1996,24.8,26,28.5,31.3,35.2,38.7,39.8,39.7,36.9,32.1,28.4,22.5
1997,21.4,23.4,28.8,28.5,36.2,36.1,39.9,37.6,38.5,31.8,27.3,21.7
1998,22.4,21.5,26.1,27.8,31.7,36.2,38.5,37.7,36.9,33,26.4,21.4
1999,22.4,24,26.2,26.9,31.2,34.6,37.2,36.7,35.4,35.1,27.7,23.1
2000,22.9,24.5,25.4,29.8,33.8,36.6,38.1,37.7,37.8,30.2,23.9,23.5
2001,22.6,22.1,25.5,27.6,33.1,37,37.8,37.1,36.7,32.1,26.4,21.2
2002,21.3,24.4,25.8,28.7,32.4,36.2,37.2,37,36.7,30.4,27.7,21.3
2003,25.4,23,26.5,27.7,32.7,35.2,38.7,38.2,36.4,32.9,25.8,22.2
2004,21.1,22.2,28.3,29.3,35,36.5,39,37.3,37.5,30.8,24.7,22.1
2005,22.2,23,26.1,29.1,33.4,36.1,38.8,37.1,36.7,31.9,27.7,23
2006,22.6,24.6,24.7,29.1,33.5,38.6,40.6,37.6,36.2,31.7,28.2,22.1
2007,19.9,23.5,27.4,28,32.7,36.2,38.1,38.3,36.6,32.9,26.7,20.3
2008,19.9,22.9,26.3,29.8,32.3,37,37.6,37.7,37,34.9,28.5,21.9
2009,23.9,24.3,26.8,29.1,33.4,35.3,39.2,39.1,38,31.6,27.6,21.2
