1901,19.1,22.8,22,22.6,22.3,22.3,21.9,21.5,21.8,22.2,22.2,20.5
1902,21.7,22.5,22.5,23.6,22.9,22,22,21.9,21.5,21.8,22.1,21.1
1903,20.8,23.3,23.3,23.1,22.9,22.5,21.8,21.2,21.4,21.8,22.2,21.6
1904,20.4,23.2,22.9,22.9,22.7,22.8,21.8,21.9,22.1,22.1,22.6,21.3
1905,20,22.4,22.2,22.9,22.9,21.8,21.8,21.2,21,22.3,22,20.4
1906,18.9,23.8,23.6,24.3,22.5,22.3,21.1,21.2,21.2,21.7,22,20.8
1907,21.4,22.2,22.5,22.9,23.4,22,22.5,21.4,21.7,22.6,21.8,20.7
1908,21.4,23.5,23,23.7,22.4,22.2,21.6,21.1,21.6,21.8,21.9,20.4
1909,20.1,23.7,23.6,23,22.2,21.2,21,20.5,21.7,21.7,21.6,20.7
1910,18.2,23.7,23,23.3,22.9,23.3,21.9,21.7,21.4,21.7,22.2,21.2
1911,20.6,23.2,23.2,23.2,22.6,21.4,21.9,21.3,21.7,21.9,21.1,19.9
1912,22.4,23.8,23.5,24,23.3,22.5,22.1,21.7,21.3,21.7,21.2,20.8
1913,22.5,24.2,22,22.9,23.3,23.5,22.6,22.5,22,21.9,21.3,20.4
1914,21.7,22.9,22.5,22.9,23.6,23.7,21.4,21.5,21,21.6,21.5,20
1915,19.9,22.6,23.3,22.7,22.7,21.8,21.9,21.4,21.9,22.2,22.1,21.1
1916,19.2,21.8,23,22.9,22.5,21.9,21.9,21,21,21.5,21.2,20.5
1917,20.9,23.1,22.3,22.6,21.7,21.3,22,21.4,20.8,21.2,20.6,20.3
1918,19.1,22.9,22,22.5,22.6,22.1,21.7,20.4,20.8,21.8,21.8,20.8
1919,20.6,23.5,22.5,22.7,22.4,21.6,21.1,21.3,21.3,21.7,22.8,21.1
1920,20.3,23.2,22.5,22.9,22.7,22.2,21.4,21.3,21.5,22,21.9,21.2
1921,21.5,23.2,22.8,22.5,22.2,21.4,21.7,21.3,21.4,22.2,22.1,20.4
1922,20.5,23.6,23.6,22.9,22.9,22.4,22.1,20.7,20.9,21,21.1,20.2
1923,20.6,22.2,22.4,21.9,22,22,22.9,20.8,21.5,21.6,21.7,20.8
1924,20.4,24.6,23.3,21.4,21.9,21.3,21.5,21.3,22.5,21.9,21.6,20.2
1925,17.6,22,22.2,23.4,23.2,21.7,21.4,21.1,21.5,20.9,22.5,20.4
1926,20.3,24.7,23.8,23.9,22.9,21.4,20.5,22,22.3,22.8,21.9,21.3
1927,18.2,23,22,22.9,21.9,21,21.7,20.8,22.5,21.4,21.1,19.4
1928,19.3,21.9,21.5,20.7,21.4,21.8,21.5,19.9,21.1,20.9,21.4,20.6
1929,18.6,21.1,21.6,23.2,22.5,21.1,21.7,20.4,21.3,21.4,21.3,20.2
1930,18.5,21.2,22.1,22.8,22.9,21.6,21.1,20.9,21.5,21.5,21.8,21
1931,21.3,22.5,23.5,22.9,22.5,22.4,21.9,21.4,21,21.8,21.7,21.3
1932,19.4,22.8,23.6,23.4,23.1,21.9,21.4,21.1,21.8,22.3,22.3,20.7
1933,21.2,22.3,22.7,23,22.5,21.8,21.7,21.5,21.9,21.9,22,21.5
1934,18.3,21.9,22.7,23,23.1,22,22.2,22.5,23,22.4,22.8,20.4
1935,19.1,22,23,23.4,21.9,21.1,20.9,20.9,21.6,21.2,21,21.3
1936,20,24.8,23.6,22.6,22.1,21.7,21.4,20.6,21.1,22,22.8,21
1937,19.6,22.7,23.2,23.9,23.4,22.8,21.6,21.8,21.4,21.9,22.9,21.1
1938,21.2,23.8,23.4,23.8,23.5,23.2,22.2,21.4,22,23,22.9,22.2
1939,21.4,22.5,23.6,23.3,23.1,22.6,21.9,21.3,22,22.9,23,21.9
1940,20.6,22.9,22.3,22.8,22.7,22.2,21.8,21.4,21.8,22.1,22.1,20.5
1941,21.3,23.2,23.6,23.1,23.2,22.8,22.1,22.2,22.9,22.9,22.3,21.4
1942,20.3,23.9,23.5,23.3,22.3,22.3,21.7,21.4,22.8,22.4,22.2,19.7
1943,20.1,22.6,22.8,22.8,22.2,22.1,21.6,21.4,22.1,22.3,21.6,20.8
1944,20.1,22.6,22.9,23.2,23.4,22.5,22.2,22.3,22.5,22.9,21.7,20.9
1945,21,22.5,22.9,23,22.9,22.4,22.4,22,22.9,22.1,21.7,20.2
1946,20.6,23.1,23.5,23.2,22.3,21.6,21.9,21.2,21.9,22,21.8,20.1
1947,19.6,24.2,22.8,23.2,23.5,22.5,22.1,22.4,22.3,21.7,20.8,20.5
1948,18.6,22.2,22.9,22.8,22.2,21.9,22.1,22.1,22.4,22.3,21.6,20.9
1949,20.5,22.5,23.6,23.3,23,22.2,22.7,22,22.7,22.3,21.9,21.1
1950,20.8,21.9,22.7,22.8,22.8,22,21.9,21.4,21.8,21.7,21.5,20.5
1951,20.1,22.3,22.7,23.1,22.8,22.3,21.5,21.6,21.9,21.9,21.6,20.1
1952,19.7,22.3,22.4,23.2,22.9,22.4,21.8,21.2,21.3,21.6,21.4,20.4
1953,20.9,22.4,22.4,22.7,23,22.1,21.8,21.4,21.5,21.6,21.9,20.3
1954,20.1,22.5,22.4,22.1,22.1,22.1,21.1,21,21.5,21.2,21.4,20.8
1955,20.4,22.4,22,22.5,22.2,22,21.6,21.5,21.2,21.5,21.2,19.9
1956,19.5,22.7,21.8,22.6,22.6,21.4,20.9,21.7,21.4,21.9,22,20.9
1957,19.4,22.6,22.8,23.3,23.4,21.7,21.7,22.4,21.6,22.1,22.6,21.7
1958,21.6,23.1,23.3,24.4,23.8,21,21.7,22.1,21.4,21.8,22.8,21.3
1959,21,23.1,22.8,23.1,22.3,22.1,21.7,22.3,22,22.5,22.6,20.6
1960,20.5,22.3,22,22.2,23.4,21.8,21.9,21.1,21.8,22.1,22.1,21.5
1961,20.3,23.1,23.4,22.9,23.1,22.1,21.9,21,21.6,22.5,22,21
1962,21.5,23.3,23.5,23.2,22.8,21.7,22.3,21.2,21.7,22,22.3,20.5
1963,20.5,23.1,22.4,23,22.3,22.3,22.3,22.8,22.9,22.1,21.9,21.1
1964,20.1,22.8,23.1,23.1,22.5,22,21.4,21.2,21.3,21.9,21.8,21.2
1965,20.5,22.9,22.8,22.3,22.2,22.1,22,20.9,21.7,22.3,22.8,20.8
1966,21.1,23.2,23,23.1,23.3,22,22.5,22,21.9,22.5,22.6,21.4
1967,19.2,22.6,22.6,23,22.9,22.2,21.2,21.2,21.8,22.1,22.5,21.2
1968,20,23.4,22.8,22.8,22.7,22.3,22.6,22.9,22.2,22.2,21.9,21.5
1969,21.4,23.4,22.9,24,23.7,22.7,22.4,21.8,22.2,22.3,21.8,22.2
1970,22,23.9,23.7,23.7,23.1,22.9,21.9,22.2,22.3,22.7,21.6,21.1
1971,19.7,23,22.3,22.3,22.1,21.9,21,20.6,20.9,21.4,21.5,19.8
1972,20.8,22.3,21.9,22.5,22.3,22,22.2,20.9,21.1,21.8,22.1,21.3
1973,20.5,23.9,23.1,23.4,22.7,22.1,21.7,21.5,21.6,21.8,21.5,20.5
1974,19.3,22.8,22.3,22.4,22.5,22.1,21.3,21.5,21,21.4,21.4,19.8
1975,18.7,22.1,22.2,22.3,22.5,22,21.3,21.2,21,21.1,21.6,21
1976,19.7,21.9,22.1,22.6,22,21.4,21.3,20.6,21,21.3,21,20.5
1977,21.2,23.2,23.5,23.5,22.7,22,21.7,21,21.6,22.1,21.6,20
1978,21.7,23.5,22.4,22.9,22.6,21.6,20.9,20.3,20.8,21.7,21.4,21.5
1979,22.3,23.4,22.9,23.1,22.7,22,21.8,21.6,21.9,22.1,22.1,20.3
1980,21.4,23.3,22.9,23.5,22.3,22.5,21.8,21.4,21.8,21.9,21.9,19.6
1981,19.2,23.4,22.8,23.1,22.7,22.4,21.9,21.7,21.6,21.7,21.8,21.6
1982,19.5,23.2,22.1,23,22.5,22.3,21.6,21,21.7,21.8,22,21.3
1983,18.8,23.2,24.2,23.3,22.8,22.2,21.4,21.6,22,22.6,22.8,21.5
1984,21.3,23,23.1,23.1,22.9,22.5,21.3,21.6,21.7,21.3,22.1,20.4
1985,20.9,22.5,23,22.9,23.1,21.8,21.5,21.7,21.3,22.2,22.4,19.9
1986,19.3,23,22.8,23.4,23.3,22.2,21.8,21,21.2,21.6,21.8,19.5
1987,21.7,23.3,23.5,24.1,23.5,22.6,22.4,22.5,22.5,22.4,22.9,21.5
1988,20.2,23.6,23.5,23.5,23.3,22.5,21.8,21.4,22,22.7,22.2,20.3
1989,19.6,22.9,22.4,22.9,23,22.4,21.9,21.3,21.7,21.5,23.2,21.2
1990,20.6,22,23.8,23.3,23.3,21.7,21.9,21.1,21.6,22.2,22.2,22.2
1991,20.7,23.7,23.6,22.8,23,23.3,22.4,21.9,22.1,21.9,22.4,21.4
1992,20.5,23.8,23.6,23.4,23.2,22,21.4,21,21.5,21.8,21.8,22.1
1993,20.9,23.2,22.4,23.4,22.7,22.5,21.8,21.3,22,22.6,23.2,21.6
1994,21.2,23.5,23.3,23.7,22.9,22.4,22,21.8,22.3,22.3,22.3,20.8
1995,19.5,23.5,23.1,23.5,23.4,23.1,22.6,22.2,21.8,22.1,22.1,22
1996,22.5,23.5,23.3,23.7,23.8,23,21.8,21.4,21.6,22.3,22.3,21.1
1997,21.4,23.3,23.5,23.2,23.2,22.1,21.7,21.2,22.3,23.1,22.8,22.4
1998,21.1,24.7,24.3,24.5,24.4,23.2,22.4,21.9,22.3,22.7,22.8,20.9
1999,21.5,22,22.7,23.1,23.1,22.7,22.5,22.4,21.7,21.9,22.7,21
2000,20.7,21.6,23.5,23,23,22.6,21.9,21.9,21.7,22.5,21.9,21
2001,19.2,22.3,23,22.2,22.6,23.1,21.6,21.9,22.1,22.1,22.9,20.4
2002,20.7,21.8,22.5,23.6,23.9,22.7,22.2,21.8,22.2,21.6,21.7,21.2
2003,20,24.4,22.4,23.3,23.2,22.7,22,21.7,22,22.8,22.9,21.2
2004,21.8,23.4,23.7,23.6,23.3,22.2,22,21.9,21.6,22.4,22.8,23.3
2005,19.7,24.7,23.6,23.5,23.1,22.7,22.2,21.5,22.8,22.3,22.8,22
2006,20.5,24.1,22.9,24,21.8,23.3,22.3,21.8,22.4,22.7,21.1,20.8
2007,18.5,23.4,24.1,22.7,23.3,22.6,22.5,21.8,22.6,22.3,22.2,20.9
2008,18.1,21.4,22.3,23.7,23.4,22.4,22.1,21.6,22.2,22,21.3,20.9
2009,19.8,23.9,23,23.4,23.4,22.9,22.1,22.1,22.1,21.9,22.5,20.6
