1901,20.8,21.5,22.9,24.4,24.5,24.3,24.2,24.1,23.8,23.3,23,21.9
1902,20.5,21.6,23.2,24.4,24.8,24.7,24.4,24.3,23.7,23.5,23.2,22.6
1903,20.9,21.2,23.6,24.9,24.8,24.1,24.2,23.9,23.4,23.1,22.3,20.4
1904,19.5,20.9,22.7,23.9,24.5,24.3,24.2,24.3,24,23.6,22.7,21.3
1905,21.5,21.9,22.9,24.6,24.7,24.4,24.4,24.5,24,23.6,23.3,23.6
1906,21.6,22.4,23.1,25,25.2,24.8,24.5,24.6,24.2,23.3,22.6,22.1
1907,20.7,21.6,22.5,24.2,24.3,24.2,24.3,24,23.9,23.5,23.2,21
1908,20.7,21.3,22.6,24.2,24.5,24.3,24.2,24.1,23.9,23.5,22.5,21.9
1909,20.7,21.7,22.8,24.3,24.3,24.4,24.1,24.3,24,23.7,22.6,21.4
1910,21.1,21.1,22.4,24.1,24.7,24.3,24.3,24.3,23.5,23.3,22.9,21
1911,20.5,21.3,22.8,24.5,24.7,24.5,24.5,24.6,24.2,23.6,24,23
1912,21.3,21.9,24.1,24.8,25.8,25.1,24.2,23.9,23.9,23.3,22.3,21.9
1913,20.5,21.8,23.5,24.7,24.1,24.2,23.8,24,23.9,23.4,22.6,22
1914,20.1,21.8,23.3,25,25.8,24.3,24.2,24.2,23.8,23.2,23.5,22.7
1915,20.9,22.4,23.4,24.9,25,24.9,24.4,24.6,23.7,23.4,22.7,20.8
1916,19.9,21.4,23.4,24.6,24.5,24,24.1,24.1,23.6,23.1,22.2,21.2
1917,20.6,21.2,22.2,24.8,24.5,24,23.9,23.7,23.4,22.8,22.5,21.2
1918,18.9,19.8,22.2,23.6,24.2,24.1,24.6,24.2,24.1,23.4,23.5,22.5
1919,21.2,22,23.9,25,25.1,24.3,24.1,24,23.8,23.3,22.8,22.2
1920,19.8,21.6,23.3,24.6,25.1,24.6,24.2,24.4,24,23.1,23.5,22.1
1921,20.3,21.1,23.1,24.2,24.3,24.2,23.7,24,23.5,23.1,22.2,21.8
1922,21.2,21.8,22.3,24.4,24.7,24.3,23.6,24,24.2,23.2,22.7,21.7
1923,20.3,20.8,22.4,23.9,23.9,23.8,23.5,23.4,23.4,23,23.1,22.2
1924,21,21.7,23,24.3,24.7,24.2,23.6,24.2,23.9,23,23.2,20.7
1925,20.9,20.7,22.6,23.7,24.7,24.2,24.1,24.2,23.8,22.9,22.9,20.8
1926,20.7,21.8,22.9,25.3,25.6,24.6,24.3,23.9,23.8,23.1,22.9,22.2
1927,20.6,21.6,23.5,24,24.2,24.1,24,24,23.8,23,23.1,22.1
1928,22.3,21.2,23.9,24.3,25,24.4,24.5,24.4,23.8,22.5,22.6,23.2
1929,21.9,21.7,22.6,24.2,25.9,24.7,24.3,24.2,23.9,23.5,22.6,22.9
1930,19.4,21.6,22.3,25.5,24.9,24.8,24.4,24.8,23.7,23.5,23.8,22.8
1931,22,22.9,24,25.8,25.4,25.2,24.5,24.7,23.8,22.5,22.9,22.2
1932,20.5,20.9,22,24.4,25.1,24.5,24,24.2,23.2,23.2,22.9,21.8
1933,19.5,22.3,22.6,24.9,25.1,25.1,24.2,24.5,23.8,23,22.3,22.2
1934,19.4,20.6,21.9,23.2,24.7,24.4,23.7,24.3,24,22.3,23.3,22
1935,21.5,22.3,23.9,24.8,24.4,24.7,24.4,24.2,23.6,23.6,23.8,21.8
1936,20.5,22,21.6,25.1,24.7,24.5,24.3,23.9,23.6,22.6,23.1,22.7
1937,21.4,21.8,24.4,25,24.7,24.6,24.1,24.3,23.6,23.3,23.1,22.5
1938,21.3,21.6,21.8,23.8,24.3,24.7,23.7,23.4,23.6,23.3,23,22.4
1939,21,21.2,22.5,24.1,24.4,24.4,24.8,24.5,23.9,23.5,23.6,20.3
1940,18.8,21,23,24.2,24.5,24.5,24.2,23.9,24.3,23.8,23.7,22.7
1941,22.9,22.6,23.2,25.2,25.3,24.6,24.6,24.8,24.3,23.9,23.8,22.6
1942,20.3,21.8,22.9,23.9,24.3,24.3,24,23.9,23.5,23.3,23.2,22
1943,19.8,20.8,22.7,23.6,24.5,24,24,23.9,23.7,23.4,22.9,21.4
1944,20.9,21.6,22.7,24.3,24.5,24.2,24.1,24.1,24,23.5,23.1,21.4
1945,20.7,21.7,22.6,24,24.3,24.1,24.3,24.1,23.6,23.1,23.3,22.1
1946,20.4,21.7,23.6,24.1,24.5,24.4,24,23.9,23.8,22.9,23.3,22.4
1947,22.3,21.4,23,23.4,24.5,24,24.1,24.1,23.7,23.1,22.4,21.5
1948,20.4,21.7,22.9,24,24.5,24.4,24.1,24.1,23.7,23.4,21,22.2
1949,20.1,21,22.7,24,24.4,24.3,24.4,23.9,23.8,23.2,22.6,21.9
1950,21.3,21.5,23.4,23.9,24.6,24.4,24,24.5,23.7,23.9,23.5,21
1951,21,21.5,22.9,24.7,24.9,24.5,23.9,24.5,24.4,24,24.1,22.5
1952,21.2,22.4,22.9,24.2,25.2,24.5,24.2,23.8,23.6,23.2,23,21
1953,21.2,21.8,23,24.3,24.3,24.4,23.7,24.2,23.7,23.5,23.2,22.7
1954,22.5,21,22.6,24.6,24.6,24.9,24.4,24.6,23.2,23.1,22.2,21.4
1955,19.6,21.4,23,23.3,24.6,23.9,24,23.7,23.5,23.4,22.9,20.8
1956,19.5,21.8,22.8,24.1,24.5,23.7,24,23.6,23.8,22.6,22.3,21.4
1957,19.8,20.4,22.4,23.6,24.4,23.7,23.8,24,24,23.2,22.9,22.6
1958,21.2,21.2,23.7,24.9,25.2,24.5,24.2,23.7,23.1,22.5,21.5,20.7
1959,19.4,22,21.3,23.6,24.4,24.8,23.8,23.9,22.9,22.7,22.9,23
1960,20.9,20.5,23.1,24.2,24.3,24.2,24.1,24.4,23.6,23.4,23.9,21.7
1961,19.3,21.1,23,23.7,24.3,24.1,24,24.2,23.2,22.8,22.8,22.5
1962,19.9,20.2,22.7,23.8,24.3,23.9,24.1,23.8,23.7,22.9,22.5,21.4
1963,17.1,19.4,21.5,23.6,24.3,23.5,23.5,23.9,23.7,23.1,23.6,21.3
1964,21.8,20.4,22.2,24.6,23.9,24,24.3,23.8,23.4,23.3,22.1,21.1
1965,18.8,21.6,21.6,23.2,24,23.7,23.6,23.5,22.9,23.3,23.4,23.2
1966,22.4,22.6,23.7,24.5,24.5,24.7,24.5,24.1,23.6,23.7,22.9,23.5
1967,20.6,20.8,23.1,24.2,24.9,25.3,24.1,24.7,23.6,22.7,23.5,20.9
1968,20.6,21.3,22.6,23.8,24.4,24.3,24.5,24.2,23.8,23.1,23.5,23
1969,22.7,21.8,23.9,24.7,24.7,24.5,24.1,24.2,24.3,23,21.8,20.2
1970,20.9,21,23.2,23.5,24.4,24.5,23.6,22.8,23.2,22.5,22.6,22.4
1971,18.7,19.7,21.5,23.4,24.9,23.6,24.3,24.1,24,23.2,21.8,22.2
1972,19.5,22.5,22.3,23.1,24.7,24.6,24.8,23.6,23.7,24.3,23.7,23
1973,21.1,22.3,23.9,25.2,24.7,25,24.5,24.4,23.6,23.3,22.5,21.1
1974,20.4,20.4,21.5,23.9,24.1,24.2,23.9,24.3,23.7,23.4,23,21.9
1975,21.8,21.9,22.9,24.2,24.4,24.2,24.1,24,24.1,23.6,22.5,21
1976,19.7,22,22.6,24.3,25.1,24.4,24.3,23.9,23.8,23.4,21.8,22.2
1977,21.2,20.7,22.2,24.2,24.3,24.7,24.4,24,24,23.3,23,22.6
1978,22,21.5,24,24,24.3,24.1,24.1,23.8,23.9,22.8,23.5,22.4
1979,21.9,22.4,24.2,24.6,24.8,25.3,25.1,24.6,23.9,23.3,23.7,23
1980,21.6,22.8,24.4,25.2,25.2,24.7,24.7,24.7,24.1,23.8,23.8,22.6
1981,20.4,22.2,23.2,24,24.9,24.3,24.3,25.3,25.1,24,23.6,21.6
1982,19.8,22.3,23.6,23.6,24.9,24,24.1,23.7,23.6,23.8,24.7,21.3
1983,21.1,23.1,24.4,26.2,26.2,24.4,24.7,24.9,24.5,23.9,22,21.9
1984,20.8,21.7,22.8,24.8,24.3,23.8,23.7,23.8,22.9,22.8,22.9,22.3
1985,20.8,22.6,22.5,23.8,23.9,23.7,23.1,23.8,23.4,23,23.9,21.9
1986,19.8,21.5,22.6,23.9,24.3,24.4,23.5,23.6,23.4,23,22.7,21.6
1987,20.5,21.1,22.9,24.2,24.2,24.4,24,24.6,23.6,24.1,23.8,20.1
1988,21.5,22.1,23.4,23.7,24,23.7,23.8,24.1,23.8,22.9,22.2,20.9
1989,22.1,20.7,22.4,24.2,24.6,23.6,24.4,24,23.8,23.3,22.5,21.1
1990,21.5,22.1,22.3,24.2,24.4,24.6,23.8,24.5,23.7,23,23.3,22.1
1991,22,22,24.1,25.2,25.2,24.7,24.5,24.2,24.3,23,22.5,22.5
1992,20.2,22,24,25.5,25.3,24.9,23.7,24.3,23.7,22.6,21.9,22.6
1993,20.7,21.1,22.7,24.2,24.6,24.6,24,23.9,23.7,23.3,23.2,22.1
1994,21.4,22.8,22.5,24.4,24.8,23.8,24.1,23.9,24.1,22.6,23.1,23.5
1995,21.1,21,22.9,25.2,24.7,24.6,24,24.7,24.4,23.3,23.3,21.8
1996,21.6,20.5,22.2,24,24.1,24.1,24.1,24.2,23.8,23.3,23.3,21.9
1997,20.4,21.6,22.4,23.4,24.7,24.5,24.1,24.2,24,24,23.8,23.1
1998,23.2,23.4,24.3,25.1,25.6,24.4,24.6,23.8,24.3,24.1,23.9,22.9
1999,22,21.7,23.1,24.2,24.2,23.6,24.4,24.4,24,23.5,22.7,21
2000,22.1,21.5,23.4,24,24.3,23.6,24.4,24.9,23.9,23.9,22.9,23.9
2001,23,22.4,22.5,25.4,24.7,23.4,24.4,24.5,24.3,23.9,22,22.3
2002,21.2,21.4,23,24,23.7,24,24.5,23.9,23.4,23.3,23.8,23.8
2003,20.9,21.5,22.4,24.2,24.8,23.6,23.8,24.2,23.7,23.3,23.4,21.5
2004,22,21.8,23.6,24.6,25.7,24.1,24.8,24.9,24,23.7,24.2,22.1
2005,22.1,24,23.1,25.1,24.9,25,24.4,24.4,24.9,22,23.9,22.8
2006,22.3,22.5,23,24.5,24.5,24.4,24.9,24.5,24.4,23.9,23.7,23
2007,22.4,22.9,24,24.3,24.8,23.1,24.6,24.1,24.4,23.5,22.7,23.6
2008,22.4,20.8,22.6,24.6,24.4,24.2,24.5,24,24.4,24,23.2,22.4
2009,21,22.6,22.9,24.6,25.1,24.8,24.4,24.8,24.2,23.8,23.5,23.3
