1901,20.4,23,22.8,23.3,23.3,22.9,22.4,21.9,22.1,22.8,23.1,22.1
1902,23,22.8,23.2,24.2,23.7,23,22.5,22.3,21.9,22.7,23,22.4
1903,21.9,23.5,23.9,23.8,23.7,23.1,22.3,21.7,21.8,22.5,23.1,22.8
1904,21.5,23.4,23.5,23.6,23.5,23.4,22.3,22.2,22.4,22.7,23.4,22.5
1905,21.3,22.8,22.9,23.6,23.7,22.5,22.3,21.6,21.5,22.9,22.9,21.8
1906,20.3,24,24.2,24.9,23.3,22.9,21.7,21.7,21.7,22.4,23.1,22.2
1907,22.5,22.8,23.2,23.6,24.1,22.6,22.9,21.8,22,23,22.8,22.1
1908,22.4,23.8,23.6,24.4,23.2,22.9,22.1,21.5,21.9,22.5,22.9,21.8
1909,21.3,23.8,24,23.7,23.1,22,21.6,21.1,22,22.4,22.5,22
1910,19.7,23.8,23.6,24,23.6,23.8,22.4,22.1,21.8,22.4,23.1,22.5
1911,21.8,23.4,23.8,23.9,23.4,22.1,22.3,21.6,22.1,22.7,22.2,21.5
1912,23.3,23.9,24,24.6,24,23.1,22.6,22.1,21.7,22.5,22.5,22.2
1913,23.5,24.2,22.7,23.6,24,24,22.9,22.7,22.3,22.6,22.5,21.9
1914,22.7,23.2,23.2,23.6,24.3,24.2,22,21.9,21.5,22.4,22.6,21.6
1915,21.3,23.1,23.9,23.7,23.5,22.7,22.4,21.8,22.3,22.9,23.2,22.6
1916,20.8,22.4,23.7,23.8,23.5,22.7,22.3,21.5,21.6,22.4,22.5,21.8
1917,22,23.3,23.2,23.5,22.8,22.2,22.5,21.8,21.3,22.1,21.9,21.7
1918,20.6,23.5,23.1,23.4,23.5,22.7,22.2,21,21.4,22.5,22.9,22.1
1919,21.8,23.6,23.1,23.4,23.2,22.4,21.7,21.7,21.6,22.4,23.6,22.4
1920,21.5,23.4,23.2,23.6,23.5,22.8,21.9,21.7,21.8,22.6,22.8,22.4
1921,22.5,23.4,23.4,23.2,23,22.2,22.2,21.7,21.8,22.8,23,21.7
1922,21.6,23.8,24.1,23.6,23.7,23,22.5,21.3,21.5,21.8,22.2,21.6
1923,21.9,22.5,23,22.8,22.8,22.7,23.5,21.3,21.8,22.3,22.7,22.2
1924,21.6,24.5,23.9,22,22.8,22.1,22,21.7,23.3,22.4,22.6,21.4
1925,19.1,22.2,22.6,24,24,22.5,21.9,21.5,21.7,21.7,23.2,21.6
1926,21.5,25.2,24.5,24.6,23.7,22,21.2,22.5,22.7,23.3,22.6,22.6
1927,19.8,23.4,22.7,23.5,22.7,21.7,22.1,21.3,22.8,22.1,22,20.8
1928,21,22.4,22.5,21.5,21.8,22.3,22,20.5,21.4,21.6,22.3,21.9
1929,19.9,21.5,22.4,23.8,23.3,21.8,22.1,20.8,21.4,22,22.3,21.5
1930,20,21.9,22.6,23.5,23.8,22.2,21.8,21.3,21.8,22.2,22.7,22.1
1931,22.3,22.7,24,23.6,23.3,23.2,22.4,21.7,21.3,22.5,22.5,22.4
1932,20.5,23,24.1,24,23.8,22.7,21.9,21.6,22.1,22.9,23.1,21.9
1933,22.1,22.5,23.2,23.7,23.4,22.5,22.2,21.9,22.2,22.6,22.9,22.8
1934,19.6,22.1,23.4,23.7,23.6,22.2,22.5,23,23.4,22.9,23.4,21.5
1935,20.4,22.3,23.4,24,22.7,21.9,21.5,21.4,21.8,21.9,22.1,22.5
1936,21.2,24.7,24.1,23.4,22.9,22.3,22,21.1,21.6,22.5,23.5,22.3
1937,20.8,23,23.7,24.4,24,23.3,22.1,22,21.7,22.4,23.6,22.2
1938,22.2,23.8,23.9,24.3,24.1,23.5,22.6,21.7,22.1,23.4,23.6,23.2
1939,22.3,22.8,24.1,23.9,23.6,23.1,22.4,21.7,22.2,23.2,23.6,22.9
1940,21.7,23.1,23,23.5,23.5,22.8,22.3,21.9,22.1,22.7,23,21.8
1941,22.4,23.9,24.4,23.8,23.9,23.6,22.5,22.7,23.2,23.3,23.1,22.5
1942,21.5,24.1,24.3,24,23.2,22.8,22.1,21.7,23.2,23,22.9,21
1943,21.3,23,23.5,23.6,23,22.6,22,21.7,22.5,22.9,22.3,21.9
1944,21.3,23,23.6,23.9,24.1,23.1,22.5,22.7,22.7,23.5,22.6,22.2
1945,22.1,23,23.7,23.8,23.7,22.9,22.8,22.5,23.2,22.7,22.6,21.7
1946,21.8,23.7,24.2,24,23.1,22.2,22.4,21.6,22.2,22.7,22.7,21.6
1947,20.9,24,23.6,23.7,24,23,22.5,22.7,22.5,22.3,21.6,21.7
1948,20,22.5,23.9,23.4,23,22.5,22.6,22.4,22.5,22.8,22.4,22.2
1949,21.8,23,24.1,23.9,23.8,22.9,23.2,22.5,23,22.8,22.6,22.3
1950,22.1,22.6,23.6,23.5,23.4,22.6,22.4,21.8,22.1,22.1,22.5,21.8
1951,21.9,23.2,24,24,23.5,23.1,22.9,22,23.4,23.5,23.4,22.6
1952,21.5,23.4,24.1,24.2,24.1,22.9,23.4,22.2,23,23,23,22
1953,22.1,23,23.7,24,23.8,22.8,23,22.4,23.1,23.3,23.6,22.2
1954,21.6,23.6,23.7,23.2,23.3,22.8,22.1,22,22.1,22.2,22.4,22.3
1955,21.8,23,23,23.4,23,22.8,22.6,21.7,22.1,22.9,22.3,21.3
1956,20.5,22.1,23.1,23.8,23,22.3,22.2,21.6,21.9,22.8,23,22.2
1957,20.9,22.9,23.6,23.8,23.6,22.4,22.1,22.1,22.3,23,23.5,23
1958,23.1,23.4,23.9,24.4,23.5,21.7,21.5,21.5,21.5,22.3,23.7,22.5
1959,22.1,23.2,23.5,23.7,23,22.9,22.3,22,22.4,22.8,23.3,21.7
1960,21.5,22.6,22.7,22.8,23.6,22.5,22.6,21.3,22,22.8,22.9,22.7
1961,21.3,23.1,24.3,23.1,23.9,23.2,22.5,21.3,21.4,22.6,22.9,21.8
1962,22.6,23.5,23.3,23.6,23.4,22,22.8,21.7,21.7,22.5,22.5,21.6
1963,21.7,23.1,22.9,23.8,22.7,22.6,22.1,23.1,23.1,22.5,22.4,21.9
1964,21,23.1,23.7,24,23.1,22.4,22.3,21.9,21.6,22.3,22.5,22
1965,20.8,22.4,23,22.8,22.8,22.9,21.9,21.4,22.1,23.2,23.3,21.7
1966,22.1,23.5,23.9,23.8,24.1,22.8,23.3,22.6,22.3,22.9,23.2,22.6
1967,21,23.2,23.2,23.8,23.5,23.1,22.2,21.7,22.2,22.7,23.3,22.3
1968,21.5,23.4,23.6,23.5,23.4,22.9,23.3,23.5,22.8,22.9,22.6,22.7
1969,22.5,24.2,24.3,24.3,24.5,23.1,23,22.4,22.5,23.1,22.9,23.4
1970,23.2,24.3,24.6,24.3,23.9,23.5,22.6,22.6,22.8,23.6,22.8,22.6
1971,21.4,23.7,23.4,23.3,22.9,22.6,22.2,20.8,21.1,22,22.5,21
1972,22,22.5,22.7,23.3,23.2,22.7,22.7,20.9,21.3,22.7,23.1,22.5
1973,22,24.1,23.9,23.9,23.5,22.8,22.3,22,21.9,22.8,22.7,21.8
1974,20.3,22.9,22.9,23.2,23.4,23,22.1,22,21.1,21.8,22.5,21.5
1975,20.3,22.9,23.2,23,23.4,22.8,22.1,21.6,21.4,21.6,22.5,22.4
1976,20.8,22.2,23.2,23.4,22.9,22.1,21.5,21.1,20.9,21.9,22,22
1977,21.8,23.7,23.7,24,23.7,22.6,22.1,21.2,21.9,22.4,22.8,21.1
1978,22.9,23.4,23.2,23.6,23.3,22.2,21.2,20.9,21.3,22.3,22.6,22.8
1979,23.3,23.4,23.6,23.9,23.4,22.7,22.2,22,22.6,23,23,21.8
1980,22.5,23.6,23.7,24.6,23.2,23.1,22.1,22,22.1,22.6,23,21.2
1981,20.7,23.7,23.7,24.1,23.3,23,22.4,22.1,22,22.4,22.7,22.8
1982,20.8,23.2,22.4,23.9,23.2,22.7,21.7,21.2,22.2,22.5,23.1,22.2
1983,20.1,23.3,24.4,23.9,23.7,22.6,21.7,22,22.3,23.6,23.9,22.9
1984,22.3,23.2,23.7,23.8,23.7,23.5,21.7,22.1,22,22.1,23.1,21.8
1985,21.4,22.6,23.5,23.6,23.8,22.7,22.1,22.1,21.4,22.6,23.2,21.2
1986,20.7,23.3,23.2,24.3,23.9,23,22.4,21.3,21.7,22.3,22.8,21.2
1987,22.9,23.2,24.1,24.7,24.2,23.3,23.1,22.9,22.8,23,23.9,22.4
1988,21.2,23.7,23.9,24.5,24,23.1,22.5,21.6,22.2,23,23.2,21.6
1989,20.7,23.5,23.1,23.8,23.8,23.2,22.8,21.9,21.8,22.3,23.6,22.3
1990,21.5,21.8,24.9,23.9,23.6,22.5,22.2,21.2,22,23.2,23.1,23.1
1991,22.2,23.7,24.1,23.3,23.7,24,23.2,22.1,22.4,22.2,23.2,22.9
1992,21.4,23.6,23.8,24.3,23.7,22.7,21.6,21.4,21.9,22.8,22.7,23.3
1993,22.1,23.9,22.9,24.1,23.8,23.2,22,21.5,22.6,23.4,23.9,23
1994,22.4,23.8,23.9,24.3,23.6,23.2,21.9,22,22.3,23,23.2,22.5
1995,20.8,23.7,23.8,24.2,24.1,23.9,23,22.5,22,22.7,23.2,22.8
1996,23.2,23.3,23.9,24.8,24.4,23.8,22.5,22.3,21.9,22.8,23.5,22.1
1997,21.8,23.7,24,23.9,24,23,21.9,21.5,22.8,23.9,23.8,23.5
1998,22.5,25.3,25.5,25.3,24.7,23.6,22.6,22.1,22.4,23.6,23.6,22.5
1999,23.2,22.8,23.4,24.1,24,23.5,23.2,22.9,21.9,23.1,24.2,22.6
2000,21.9,22.2,24.7,23.2,24.1,23.3,22.3,22.6,22,23,23,23
2001,20.6,22.9,23.6,23.8,23.3,23.6,22.2,22.2,22.4,23,24,21.8
2002,22.1,22.1,23.6,24.3,24.5,23.3,22.7,22.2,22.3,22.2,22.6,22.3
2003,21.3,24.4,23.2,24.1,24.3,23.4,22.3,22.3,22.4,23.4,23.7,22.6
2004,23.1,23.7,24.9,24.3,24.1,23,22.7,22.2,22.1,23.3,23.6,24.2
2005,21.1,24.8,24.4,24.5,23.9,23.5,22.7,21.8,23.2,23.5,23.9,23.4
2006,21.7,24.3,24,24.8,23.2,24.1,22.9,22.3,22.6,23.5,22.2,22.1
2007,20.4,23.9,25,23.7,24.4,23.1,23.1,22.1,23,22.9,23.1,22.7
2008,19.6,21.8,23,24.4,24,23,22.5,22,22.3,22.6,22.4,22.3
2009,21.1,23.9,23.6,24,24.1,23.6,22.7,22.4,22.2,22.5,24,21.9
