1901,20.5,23.2,22.4,22.7,22.6,22.7,22.4,22.1,22.3,22.6,22.7,21.4
1902,22.8,22.9,22.8,23.5,23.1,22.2,22.3,22.6,22.1,22,22.6,22
1903,21.8,23.5,23.4,23,23.1,22.9,22.3,22,22,22.2,22.7,22.6
1904,21.4,23.5,23.1,23.1,23,23.3,22.3,22.6,22.7,22.5,23.2,22.3
1905,20.9,22.6,22.1,22.8,23.1,22.3,22.3,21.8,21.7,22.7,22.5,21.3
1906,19.7,23.9,23.6,24.3,22.7,22.7,21.6,21.9,21.9,22.3,22.7,22
1907,22.6,22.7,22.5,22.9,23.7,22.3,22.9,22.1,22.3,23,22.3,21.7
1908,22.5,23.9,23.2,23.9,22.7,22.8,22.1,21.8,22.2,22.3,22.4,21.1
1909,21.1,23.9,23.6,23.1,22.4,21.5,21.4,21.1,22.3,22.1,22,21.5
1910,19.1,23.9,23.1,23.2,23,23.7,22.5,22.5,22,22.2,22.7,22.1
1911,21.6,23.4,23.3,23.2,22.9,22,22.4,21.9,22.2,22.3,21.7,21
1912,23.7,24,23.5,24.1,23.4,22.9,22.6,22.5,21.9,22.2,22,21.7
1913,23.8,24.7,22.2,22.9,23.6,23.9,23,23.3,22.7,22.4,21.9,21.5
1914,22.9,23.2,22.7,22.9,23.9,24.3,22,22.3,21.7,22.1,22.3,21.1
1915,21.1,22.9,23.4,22.7,22.9,22.3,22.3,22.1,22.5,22.7,22.7,22.2
1916,20.2,21.9,23,23.1,22.7,22.3,22.5,21.7,21.7,22.1,21.8,21.4
1917,21.9,23.4,22.6,22.7,22,21.7,22.4,22.1,21.3,21.7,21.2,21.2
1918,20,23.4,22.3,22.7,23,22.7,22.2,21,21.3,22.2,22.3,21.9
1919,21.7,23.6,22.8,23,22.9,22.2,21.7,22,21.9,22.1,23.4,22
1920,21.2,23.3,22.6,23,23,22.7,22,22,22.2,22.5,22.5,22.1
1921,22.7,23.5,22.9,22.6,22.6,22.1,22.1,21.9,21.9,22.6,22.6,21.2
1922,21.4,23.8,23.8,23.1,23.2,22.8,22.5,21.4,21.6,21.5,21.7,21.1
1923,21.9,22.5,22.7,21.8,22.1,22.4,23.2,21.5,22.1,22.3,22.2,21.6
1924,21.1,24.1,23.1,21.5,22.4,21.9,21.9,21.8,23,22.1,22,21.3
1925,18.9,22.3,22,22.9,22.7,21.8,21.7,21.7,22.1,21.8,23.5,21.5
1926,21.6,24.8,23.7,23.6,23,21.9,21.1,22.7,23.1,22.9,22.3,22.5
1927,19.5,23.4,22.3,22.9,22.1,22,22.1,21.5,22.8,21.8,21.6,20.7
1928,20.7,22.7,21.9,20.9,21.4,22,21.9,20.6,21.8,21.7,22.2,21.6
1929,19.7,21.4,21.4,22.6,22.7,21.9,22.6,21.4,22.1,21.7,21.4,21.1
1930,20.3,22.3,22.7,22.9,22.9,22.1,21.9,21.8,22.3,21.9,23.1,22.1
1931,22.8,23,23.3,23.1,22.9,22.9,22.5,22.1,21.7,22.2,22.4,22.3
1932,20.3,23.1,23.9,23.7,23.2,22.2,22.1,22,22.6,22.8,23.1,22.2
1933,22.6,23,23.6,23.4,22.5,22.4,22,22,22.6,22.3,22.6,22.4
1934,19.3,22.1,23.1,23,22.9,22.1,22.3,23,23.2,22.6,23.3,21.3
1935,20,22.3,23.3,23.6,22.1,21.5,21.4,21.7,21.8,21.7,21.7,22
1936,20.8,24.3,23.8,22.6,22.2,22.1,21.8,21.2,21.6,22.1,22.8,21.8
1937,20.4,22.8,23.4,24,23.7,23.2,22.2,22.5,22.1,22.4,23.6,21.9
1938,22.3,24.2,23.7,24,23.9,23.8,22.7,22.2,22.7,23.5,23.5,23.2
1939,22.4,23,23.9,23.6,23.3,23,22.3,21.8,22.6,23.5,23.7,22.9
1940,21.8,23.3,22.5,22.7,22.7,22.5,22.3,22,22.3,22.5,22.7,21.4
1941,22.6,23.8,24,23.2,23.8,23.5,22.8,22.8,23.3,23.3,23.1,22.7
1942,21.7,24.4,23.8,23.4,22.8,22.9,22.3,21.9,23.2,22.9,22.8,20.9
1943,21.4,23.1,23.2,23,22.4,22.4,22.2,22.1,22.7,22.8,22.4,21.9
1944,21.4,23,23.5,22.9,23.5,22.8,22.4,22.8,23,23.4,22,22
1945,22.2,22.8,23.2,22.9,23.1,22.7,22.9,22.6,23.6,22.6,22.2,21.2
1946,21.9,23.9,23.8,23.3,22.6,22.1,22.5,21.9,22.5,22.4,22.3,21.2
1947,20.8,24.6,23,23.1,23.6,23,22.4,23.1,22.8,22.2,21.3,21.6
1948,19.8,23,23.2,22.9,22.4,22.2,22.6,22.7,23,22.7,22.4,22.1
1949,21.9,23.2,23.8,23.3,23.5,22.9,23.2,22.7,23.3,23,22.5,22
1950,22.3,22.5,23.1,22.8,22.9,22.5,22.4,22,22.6,22.1,22.3,21.7
1951,21,23.8,23,23.4,23,23,22,22.2,22.3,21.8,21.8,21.3
1952,20.7,22.5,22.4,23.9,23.7,22.5,22.3,22.3,21.4,21.7,21.6,21.4
1953,22.2,22.5,22.6,23.3,22.9,22.7,22,22.8,21.7,21.8,22,21.1
1954,21.1,22.8,22.5,23,22.7,22.7,21.4,22.3,21.5,21.3,21.6,21.9
1955,21.4,23.2,22.5,22.7,22.5,22.4,22,21.8,21.4,21.7,21.7,20.9
1956,21,23.1,22.1,22.8,22.4,22,21.2,21.5,22,21.8,21.7,21.1
1957,20.3,22.6,22.9,22.8,22.7,22.3,21.6,21.7,21.8,21.6,22,21.7
1958,22,23,22.9,23.2,22.2,21.7,21,21.3,21.6,22,22.6,21.5
1959,22,23.2,23.1,22.8,22.4,22.6,22.3,21.8,22.6,22.3,22.7,21.6
1960,21.5,22.8,22.3,22.1,22.4,22.3,22.4,21.6,22.2,22.1,22.4,21.9
1961,21.4,22.5,22.7,22.2,23.1,22.6,21.8,21.2,21.5,22,21.8,21
1962,21.6,22.6,22.6,22.3,22.4,21.8,22.5,22.4,21.6,22.3,22.3,21.5
1963,21.6,23.1,22.4,22.9,22.5,22.4,22.4,23.1,22.8,22.2,22,21.7
1964,21.8,23.4,23.3,23.2,22.5,22.2,21.7,21.9,21.8,22.1,22.2,21.8
1965,22.2,23.2,23,21.9,22,22.6,22.2,21.6,21.9,22.6,22.9,21.9
1966,21.7,23.1,23.3,23.2,23.5,22.7,22.8,23,22,23.3,22.7,22.4
1967,20.7,23.4,22.8,23.2,22.9,22.7,21.6,22.4,22.1,22.5,22.4,22.2
1968,21.3,23.3,23.1,22.8,22.8,22.6,22.8,24,22.5,22.9,22.4,22.3
1969,22.3,23.8,22.7,23.7,23.6,23,22.5,22.6,22.3,22.3,22.4,23.2
1970,22.8,24,23.6,23.6,23.1,23,22.2,22.5,22.5,22.9,22.2,22
1971,20.9,23.2,22.4,23,22.4,22.4,21.7,20.8,21.7,22.1,22.1,20.7
1972,21.6,22.5,22.3,22.8,22.8,22.5,22.7,21.1,22.1,22.5,22.7,22
1973,22,24.1,23.2,23.4,22.9,22.6,22.1,22.2,22.3,22.4,22.4,21.2
1974,20.6,23.4,22.9,22.6,22.8,22.4,22.2,22,22,22.3,22.9,21.4
1975,20,23,22.9,22.6,23,22.5,22,21.7,21.5,22.3,22.5,22
1976,21,22.8,22.9,23,22.4,22,21.9,21.3,22,22.1,21.9,22
1977,22.6,23.9,23.6,23.5,23.2,22.6,22.5,21.3,22.3,22.7,22.5,21.4
1978,22.8,23.6,22.8,22.9,22.9,22.1,21.6,21,22.2,22.5,22.4,22.8
1979,23.5,23.9,23.5,23.3,23,22.4,22.7,22.3,22.7,22.8,22.6,22.1
1980,22.9,24,23.5,23.8,22.6,23.2,22.6,22.2,22.7,22.6,22.5,20.5
1981,21.1,24,23.5,23.6,23,22.9,22.5,22.4,22.2,22.3,22.3,22.8
1982,20.7,23.6,22.7,23.6,23,22.7,22.2,21.6,22.5,22.5,22.8,22.1
1983,20,23.6,24,23.4,23.4,22.5,22.5,22.1,22.7,23.2,23.4,22.7
1984,22.3,23.1,23.9,23.2,23.2,23.2,21.9,22.4,22.4,22.3,23,21.3
1985,21.7,22.9,23.3,23,23.2,22.5,22.1,22.4,21.9,22.3,22.8,20.8
1986,20.9,23.4,23.1,23.6,23.6,22.8,22.3,21.3,22,22.5,22.7,21.1
1987,23,23.6,23.8,24.3,23.8,23.2,23.2,23.3,23.2,23,23.9,22.2
1988,21.6,23.9,24.4,24,23.7,22.9,22.7,22,22.6,23,23,21.5
1989,20.5,23.6,22.7,23.3,23.2,23.1,23,22.2,22.4,22.4,23.3,22.6
1990,21.8,23,24.3,23.7,23.4,22.7,22.6,21.8,22.6,23,22.6,22.6
1991,22.5,24.1,24.2,22.6,23.3,23.9,23.1,22.4,23,22.6,23.2,22.7
1992,21.6,24.2,23.9,24.1,23.4,22.6,22.2,21.6,22.2,22.7,22.7,23.2
1993,21.8,23,23,23.6,23.9,23.1,22.5,21.7,22.7,23.6,23.7,23.1
1994,22.5,24.2,23.9,23.7,23.1,23,22.8,22.4,22.9,23,23.3,22.7
1995,21.4,24.1,23.7,23.8,23.9,23.6,23.3,22.8,23,23,23.4,22.9
1996,24,24.5,24.1,24.2,24,23.6,22.8,22.5,22.5,23.3,23.2,22.2
1997,22.5,23.9,23.8,23.5,23.1,23,22.4,21.6,23,23.6,23.5,23.3
1998,22.4,25.4,25.1,24.7,24.3,23.6,23.2,22.3,22.8,23.4,23.5,22.4
1999,22.5,23.1,23.3,23.6,23.6,23.3,23.3,23.1,22.8,22.9,23.5,22.5
2000,22.1,22.7,24,22.5,23.9,23.1,22.8,22.8,23.1,23.4,22.8,22.8
2001,21.4,23.2,23.5,23.6,22.8,23.5,22.5,22.4,22.7,23.1,23.6,22
2002,22.3,22.8,23.5,23.7,24.1,23.2,22.7,22.4,22.5,22.5,22.7,22.1
2003,21.9,24.6,23.4,23.6,23.9,23.2,22,22.5,23,23.4,23.6,22.9
2004,23.6,24,24.8,23.9,23.8,23.1,22.9,22.5,22.5,23.2,23.6,24.2
2005,21.6,25.1,23.7,24.2,23.6,23.6,22.6,22,23.1,23.3,23.9,23.4
2006,21.4,24.7,23.7,24.4,23.2,23.6,22.9,22.5,23.1,23.4,22.4,22.2
2007,20.6,23.8,24.4,23.1,23.8,23,23.2,22.5,23.2,22.9,23,22.3
2008,20.1,22.3,22.8,23.7,23.6,22.9,22.7,22.2,22.8,22.8,22.6,22.6
2009,21.8,24.3,23.4,23.5,23.8,23.6,22.7,22.7,22.7,22.7,23.6,22.4
