1901,21.3,21.5,22.6,23.4,23.7,22.7,22.9,22.2,22.6,22.5,21.6,21
1902,20.7,21.3,23.1,23.3,23.8,22.7,23.1,21.6,23.3,22.9,22.1,21
1903,21.5,22.3,22.8,23.1,23.3,23.2,23.2,22.3,23.1,22.5,21.2,20.3
1904,21.3,21.5,22.6,23.4,23.7,22.7,22.9,22.2,22.6,22.5,21.6,21
1905,21.3,21.5,22.6,23.4,23.7,22.7,22.9,22.2,22.6,22.5,21.6,21
1906,20.6,20.8,22.2,22.9,23.7,22.5,23,22.2,22.9,22.6,21.7,20.7
1907,21.5,21.3,22.6,23.3,23.7,22.6,22.5,21.7,22.4,22.5,21.8,20.8
1908,20.8,21,22.6,23.9,24.1,22.8,22.9,22.1,22.5,22.1,21.1,21
1909,21,21.4,23,23.5,24.2,22.6,23.1,22.2,22.5,22.4,21.1,20.9
1910,20.4,20.9,21.3,22.4,23.3,22.3,22.7,22.1,22.5,22.3,20.9,19.9
1911,21.1,21.5,22.6,23.6,22.6,22,22.9,22.1,22.6,22.9,22,21.1
1912,21.3,20.5,22.9,24.1,23.7,22.5,22.8,22.1,22.5,22.6,21,21.2
1913,21.7,22.2,22.7,22.1,22.7,21.8,22.6,22.1,22.3,22.2,21.1,20.7
1914,20.8,21.4,21.4,23,23,22.1,23,22.4,22.4,22.3,21.2,21.3
1915,21,21,21.2,22.2,24,23,23.3,22.4,22.7,22.5,21.6,21.1
1916,22,20.8,21.9,22.7,23.4,22.3,23.3,21.9,22.3,22.2,21.1,21
1917,21.3,21.2,22.5,23,23.7,22.3,22.7,22,22.4,22.3,21.6,20.4
1918,20.9,21.9,22.7,23.4,23.5,22.3,23.1,22.2,22.6,23,21.7,20.9
1919,20.7,21.6,22.6,22.9,23.3,22.2,22.8,22.2,22.6,22.7,22.2,21
1920,21.5,21.1,22.6,24.1,23.8,22.2,22.7,22,22.6,22.4,21.3,20.8
1921,21,21.3,22.7,23.2,22.6,22.3,22.8,22.1,22.5,22.3,21.6,21.1
1922,21.5,21.7,22.9,23.9,23.7,22.6,22.9,22.4,22.7,22.5,21.7,21.1
1923,21.3,21.4,22.7,23.4,23.9,22.6,23,22.2,22.6,22.3,21.1,21.2
1924,21.3,20.4,22.4,23.4,23.5,23,23.1,22.3,22.6,22.3,21,21.3
1925,21.7,21.3,22.2,22.7,22.8,22.2,22.9,22.3,22.6,23,21.7,21
1926,21.1,21.2,22.7,23.2,23.2,22.7,23.3,22.2,22.9,22.8,21.1,21.4
1927,20.9,21.8,22.6,23.3,24.2,23.1,22.8,22.6,22.9,22.5,21.5,21.1
1928,20.8,21.9,22.7,23.1,23.1,23.3,23.2,22.5,23.1,22.9,21.5,20.9
1929,21.7,22.2,23.2,24.1,23.6,22.4,22.7,22.2,22.6,22.6,22.1,20.6
1930,21.5,21.5,22.4,22.5,23.7,22.3,22.6,22.3,22.7,22.7,21.3,20.4
1931,21.6,21.9,22.7,23.5,23.4,22.7,22.6,22.6,23.2,23.2,21,21.7
1932,22.1,22.1,22.6,23.3,24.2,22.4,22.6,22.2,23.2,22.7,20.5,21.5
1933,22,22.3,22.4,24.2,23.7,22.5,22.7,21.8,22.2,22.3,20.3,20.4
1934,21.7,21.2,21.5,23.8,23.2,22.2,22.8,22.8,22.9,22.6,21.8,21.4
1935,20.6,20.5,22.4,23.8,23.5,22.4,23,22.1,22.9,22.6,21.3,21
1936,22.6,22.6,23.7,23.8,23.7,22.8,22.9,22.8,22.9,23.1,22.1,21
1937,22.9,22.4,23.3,24,24.1,22.8,23.2,22.2,22.1,22,20.4,21.2
1938,21,20.9,22.4,21.8,23.1,22.1,22.4,21.4,22.3,21.6,20.8,20.1
1939,21.8,21.3,21.7,23.3,23.8,22.2,22.7,22.2,21.9,22.5,20.5,22
1940,20.7,20.5,22.7,22.6,23.4,22,23.2,22.7,23,22,21.3,20.8
1941,20.9,21,22.7,23.6,23.2,22.6,22.3,22.1,22.6,22.4,20.3,20.6
1942,19.7,21.7,21.8,22.8,24.4,22,22.2,21.3,21.8,21.9,20.7,20.8
1943,20.7,19.3,20.9,21.6,22.3,21.5,21.8,21.3,22.1,21.3,20.1,20
1944,20.1,21,22.6,22.9,22.8,22.2,22.9,22.2,22.2,21.2,20.7,20.1
1945,20,21.1,21.7,22.5,22.5,22.2,22.3,21.6,22.1,21.6,20.6,19.6
1946,21,20.3,21.8,22.8,24,22.4,22,21.3,21.7,21.6,21.2,20.9
1947,22,21,22.3,22.4,23,21.5,21.7,21,21.9,22.2,21.5,20.1
1948,20.6,21.1,22.3,22.1,23,21.9,22.2,21.7,21.7,22.1,21.8,20.4
1949,20.2,20.8,21.7,23,23.4,21.8,22.3,21.4,21.8,21.9,19.2,19.8
1950,20.6,20.1,22,21.9,22.7,21.8,22,21.2,22.4,21.2,19.8,18.8
1951,20.4,19.6,21.5,23.2,22.2,22.4,22.6,22.7,22.9,22.2,21.3,21.1
1952,20.7,20.7,22.2,22.4,22.9,22.3,22.6,22.4,23.2,21.4,21.8,20.1
1953,20.1,21.5,21.8,24,23.3,22.3,22.7,22.2,23.1,21.8,21.1,21.1
1954,20.8,19.9,21.8,22.4,22.4,21.5,21.9,21.6,22.1,20.6,20,18.3
1955,19.6,20.4,21.1,22.1,22.8,22,21.7,21.2,21.4,21.2,20.8,19.9
1956,19.8,21.7,22.2,23.4,22.1,22,21.6,21.5,21.7,21.6,19.9,20.1
1957,20.6,20.8,21.7,22.7,23.4,22.8,23,22.1,22.3,21.7,21,20.2
1958,21.9,21.2,23.4,24.5,24.4,23,23.6,22.7,23.1,23.1,22.5,22.4
1959,21.5,22.1,23.2,23.6,23.9,22,22.6,22,22.3,22,21.1,20.8
1960,21.3,22.3,22.6,23.2,23.1,22.3,23.2,22.2,22.9,22.9,21.8,19.9
1961,22.2,21.9,22.9,23.9,23.6,22.1,22.9,22.1,22.1,22.1,20.3,21.1
1962,20.7,21.3,22.2,22.4,22.6,22.1,22.5,22.3,22.3,22.5,21,20.6
1963,21.5,21.4,22.9,23.1,23.6,22.7,22.8,22.4,22.8,21.7,21.9,20
1964,21.7,22,23.8,23.9,23.6,22.7,23,22.5,22.9,21.8,22.4,21.5
1965,21.3,22.4,23,23.7,24,22.5,23,22.5,23.2,22.5,21.9,21.5
1966,21.7,22.2,22.1,23.8,23.9,22.9,23.7,22.7,23,22.7,20.1,19.5
1967,20.8,20.9,21.6,22.4,23.6,22.6,22.5,22.2,22.1,22.1,21.3,21.4
1968,20.8,20.3,20.6,23.2,23.3,22.2,22.5,21.8,22.3,22.2,20.7,20.7
1969,21.1,22.2,24.1,24,24.5,23.2,23.5,22.6,22.3,23.5,21.7,20.7
1970,21.9,20.9,22.8,24.5,23.7,23,23,22.3,23,23.7,21.4,20.7
1971,21.8,21.6,22.5,22.3,23.9,22.3,22.4,21.8,22.3,22.8,21.6,21.6
1972,22.3,21.1,22.4,23.7,24.3,22.8,23.3,22.4,22.8,22.7,23.7,21.8
1973,21.9,22,24.4,24,23.9,22.3,22.8,21.8,22.3,22.8,21.7,19.5
1974,22.2,21.2,22.4,23.2,23.1,22.1,22.4,21.8,21.7,21.4,20.8,20.7
1975,21.3,22,23.5,23.6,24.1,22.4,22.4,21.9,21.8,22,21.2,19.8
1976,19.9,20,22.7,23,23.2,22.1,22.4,21.9,22.6,22.4,21.6,21.3
1977,20.8,22.7,23,23,23,22.7,23,22.4,22.7,22.6,21.4,21.1
1978,20.9,21.4,23.1,23.3,22,22.2,23.4,22.4,22.2,21.7,21.5,21.4
1979,21.1,20.9,22.5,23.6,23.1,22.3,23,22.1,22.6,23.1,21.1,20
1980,22.3,21.7,23.3,23.2,24.4,22.7,23.1,22.3,22.7,22.6,21.4,19.9
1981,19.9,21.3,22.8,23.1,24.2,22.5,22.8,22.6,22.9,22.8,21,21.7
1982,22.2,22.9,23,24.3,24.3,23.1,22.6,22.1,22.8,22.4,21.9,21.1
1983,21.9,22.2,22.5,23.8,25,23.3,23.4,22.7,22.9,23,22.6,21.4
1984,21.2,21.7,22.4,22.8,22.7,21.9,22.2,22.2,22.3,22.8,21,20.3
1985,20.5,20.8,22.6,23,22.9,22.2,22.5,22.2,22.9,22.9,22.2,21.7
1986,21.1,22.5,21.1,22.7,23.8,23,23,22.6,21.3,22.3,22,22.7
1987,20.1,21.7,23.8,24.8,24.5,23.3,22.9,22.5,23,21.8,21.7,21.8
1988,21.4,22,22.9,24.4,24.4,22.7,23.3,22.2,23.3,22.8,22.9,21.2
1989,22.5,20.7,21.3,23,23.9,23.1,23.2,22.8,23.6,22.9,22.8,20.9
1990,21.2,21.5,22.9,23.5,24.2,23.1,23,22.7,23.2,22.8,22.1,21.5
1991,22.4,22,23.4,23.9,24.2,23.9,24.4,22.5,22.9,23.2,21.3,21.4
1992,22.3,21.5,23.8,24.1,23.9,23.8,23.5,22.5,22,22.8,23,22.2
1993,22.2,22.7,23.7,23.8,22.9,23.9,23.9,22.2,22.1,23.5,22.2,20.8
1994,22.1,21.9,23.6,24.6,24.4,22.8,23.3,22.7,23.2,23.1,22.4,21.7
1995,22.3,21.8,23,23.8,23.9,23,23.4,22.9,22.6,23.1,21.9,22.4
1996,20.9,21,22.3,23.2,23.7,23,23.1,22.4,22.9,22.7,21.4,21
1997,22,22,23.2,23,24,24,23.1,23.4,23.3,23.4,22.7,22.8
1998,20.7,21.9,24,24.5,25.2,23.6,23.1,22.7,23.3,24.1,22.5,22.2
1999,21.8,21.2,22.7,23.7,24,22.6,23.4,22.3,22.4,22.5,20.9,20.8
2000,21,21.5,23.2,23.9,23.8,23.5,23.4,23,23.2,23.6,22.6,21.6
2001,21.8,22.9,22.9,24.6,24.7,23.3,23.8,23.6,22.9,23.7,22.5,21.9
2002,22.1,22.9,23.8,24.1,24.5,23.3,24,23,23.3,23.5,22.4,22.5
2003,22.1,22.8,23.1,23.4,24.7,23.4,23,23.2,23.7,23.6,23.1,21
2004,22.4,23.1,24.5,25.1,24.5,23.9,23.2,22.8,23.3,23.7,22.7,22
2005,22,22.5,24.4,24.9,24.5,23.5,23.8,23.5,23.5,22.7,22.7,22.5
2006,23,22.3,23.7,24.2,24.6,23,23.7,23,23.6,24,22.4,22.7
2007,21.6,21.9,22.9,24.4,24.4,23.6,23.5,22.8,23.2,22.4,21.9,21.4
2008,22.1,22.4,23.7,24.3,25.1,23.7,23.5,22.7,23.9,23.1,22,21.6
2009,22.7,22.5,22.7,25.1,24.4,23.5,24.5,23.4,23.7,23.8,22.6,23.2
