1901,19.5,19.6,20.8,21.7,22.8,23.1,22.7,22.9,23,22.3,20.5,19.8
1902,18.9,19.3,21.5,21.8,23.1,22.9,23.1,22.1,23.9,22.6,21.5,20.2
1903,19.9,20.6,21.2,21.6,22.4,23.6,23.3,23.1,23.7,22,20.4,19.2
1904,19.6,19.6,20.8,22,22.9,23,22.8,22.8,23,22,20.7,20.1
1905,19.4,19.7,20.9,21.9,23.3,23.3,22.8,23,23.1,22.4,21,20.2
1906,18.8,18.7,20.4,21.4,22.8,22.8,23.1,22.8,23.4,22.2,21.1,19.7
1907,20,19.4,20.8,21.9,22.8,22.9,22.4,22.3,22.7,22.1,21.2,19.8
1908,19,19,20.9,22.6,23.4,23.1,22.8,22.7,22.9,21.6,20.3,20
1909,19.3,19.4,21.4,22.2,23.6,22.8,23.2,23,22.8,21.9,20.3,19.9
1910,18.6,18.8,19.3,20.8,22.4,22.5,22.6,22.8,22.8,21.9,20,18.7
1911,19.5,19.5,20.9,22.3,21.5,22.1,22.8,22.7,23,22.6,21.4,20.3
1912,19.7,18.2,21.3,22.9,23,22.7,22.7,22.8,22.8,22.3,20.1,20.3
1913,20.2,20.5,21,20.4,21.6,21.9,22.5,22.7,22.6,21.7,20.3,19.7
1914,19.1,19.5,19.4,21.5,22,22.2,23.1,23.1,22.7,21.9,20.4,20.5
1915,19.3,18.9,19.1,20.4,23.3,23.4,23.4,23.1,23.1,22.1,20.9,20.2
1916,20.6,18.7,20,21.1,22.5,22.5,23.4,22.5,22.6,21.7,20.2,20.2
1917,19.8,19.3,21,21.6,23,22.8,22.9,22.8,22.9,22,20.5,19.2
1918,19.2,20.1,21,22,22.6,22.5,23.1,22.9,23.1,22.8,21,20
1919,18.9,19.7,21,21.3,22.4,22.4,22.7,22.8,22.9,22.3,21.7,20.2
1920,19.9,19.1,20.8,22.9,23,22.3,22.7,22.6,22.9,21.9,20.5,19.9
1921,19.3,19.3,21,21.8,21.4,22.5,22.7,22.7,22.9,21.9,21,20.2
1922,20,19.9,21.3,22.7,22.8,22.8,22.9,23.1,23.2,22.1,21,20.3
1923,19.7,19.6,21.1,22.2,23.1,22.9,23,23,23,21.9,20.3,20.4
1924,19.7,18.3,20.7,22.1,23.2,23.3,23.2,23,23,21.9,20.2,20.5
1925,20.2,19.5,20.4,21.1,22,22.4,22.8,23.1,23,22.8,21.1,20.2
1926,19.5,19.3,21,21.9,22.1,23,23.4,22.9,23.4,22.5,20.4,20.6
1927,19.2,20.5,20.9,22.1,23.5,23.5,22.8,23.3,23.3,22.1,20.7,20.2
1928,19,20,21,21.6,22.2,23.7,23.2,23.2,23.5,22.6,20.7,19.9
1929,20.2,20.7,21.7,22.9,22.9,22.6,22.5,22.8,22.9,22.2,21.5,19.6
1930,19.9,19.5,20.7,21.2,22.7,22.5,22.5,23.1,23.1,22.4,20.4,19.3
1931,19.7,19.7,20.7,21.9,22.7,23,22.6,23.3,23.5,22.6,20.3,21
1932,20.6,20.4,20.8,21.8,23.1,22.7,22.7,22.8,23.5,22.3,19.8,20.5
1933,20.4,20.5,20.8,22.9,23.1,22.8,22.8,22.6,22.7,22,19.7,19.7
1934,20.1,19.3,19.8,22.4,22.6,22.6,22.8,23.4,23.3,22.3,21,20.5
1935,19,18.7,20.8,22.5,23,22.9,22.9,22.8,23.3,22.2,20.6,19.9
1936,20.9,20.6,21.7,22.3,22.9,23,22.9,23.3,23.3,22.8,21.4,20.2
1937,21.3,20.5,21.5,22.5,23.3,23.2,23.1,22.9,22.6,21.7,19.8,20.2
1938,19.4,19.2,20.7,20.5,22.4,22.5,22.5,22.2,22.7,21.3,20.2,19.1
1939,20.2,19.7,20,21.7,22.9,22.5,22.7,22.9,22.3,22.1,19.8,20.9
1940,19,18.4,20.9,21.2,22.6,22.5,23.2,23.4,23.3,21.6,20.6,20
1941,19.5,19,20.8,22.1,22.5,23.1,22.5,22.9,23.1,22.2,19.8,20
1942,18.4,19.7,20.4,21.5,23.5,22.6,22.4,22.2,22.3,21.6,20.2,20
1943,19.3,17.4,19.4,20.2,21.7,22.1,22,22.1,22.7,21,19.6,19.2
1944,18.6,18.9,20.7,21.2,21.6,22.4,23,23,22.3,21.1,19,19.4
1945,18.4,19.7,20.8,21.4,21.7,21.8,22.7,22.1,22.4,21.4,20.1,18.8
1946,20.1,19.1,19.9,22.1,23.2,23.3,21.7,21.9,22.4,21.5,21.8,20.5
1947,22,19.9,20.4,22.3,22.3,22.2,22.8,22.4,22.9,22.4,22.2,20.2
1948,19.7,18.8,20.6,21.2,22.9,22.7,22.7,23,22.6,22.1,21.3,19.2
1949,19.3,17.5,20.7,22.2,22.1,22,22.5,22.5,22.7,22.2,18.2,18.2
1950,18.9,18.3,19.7,20.5,21.8,22.2,22.5,22.1,22.4,21.9,20.1,18.2
1951,19.2,18.2,20.4,22.7,22.4,23.4,23.7,23.7,24.1,22.9,21,20.5
1952,20,19.7,22.3,22.5,22,24.7,22.8,22.3,24.4,21.5,21.6,20.4
1953,18.5,19.5,20.4,23.7,23.2,25.3,22.9,22.9,23.6,22.1,20.4,20.2
1954,19.3,17.6,21.1,22,22.9,23.6,22.5,22.9,22.9,21.7,19.6,18.1
1955,19.2,19,20.4,21.7,22.3,24.3,23,23.2,23.9,21.9,21.6,19.9
1956,18,20.5,20.3,21.8,22.1,22.5,22.2,22.6,22.9,22.4,19.6,20.2
1957,19.8,20.3,21.5,23.3,24.1,23.4,23.7,23.5,23.9,22,20.7,19.5
1958,19.7,19.2,22.5,23.3,23.6,22.6,24,23.9,24.6,23.2,23.3,21.9
1959,20.9,21.5,21.7,22.7,23,22.6,22.9,22.9,22.9,23.5,20.7,19.1
1960,19.6,19.6,20.2,21.9,23.1,21.7,23.1,23.2,23.4,23.4,21.3,18.9
1961,19.7,19.7,21.2,21.9,22.3,22,21.9,21.8,22.7,20.6,19.8,19.9
1962,18.7,18.4,19.8,22,21.5,21.8,21.8,22.4,22,21.4,19.8,19.4
1963,19,19.2,20.9,20.5,21.2,22.6,22.7,22.2,22.7,20.5,20.2,18.4
1964,19.3,19.3,21.2,22.2,22.2,21.5,22.1,22.2,22.5,20.5,20.8,20.1
1965,19.4,19.4,19.4,20.1,22.3,21.6,22.2,22.8,22.4,21.7,20.7,19.6
1966,19.1,19.1,19.4,21.8,22.8,22,22.6,22.7,22.7,22,18.7,18.1
1967,18.5,18.8,19,21.4,21.9,22,22.5,22.7,22.6,21.5,19.8,19.9
1968,19.5,17.5,18,20.5,22.6,22.5,22.5,22.3,22.5,21.8,19.9,19.7
1969,19.8,20,20.6,22.7,23.1,22.9,23,22.5,22.8,22.2,20.2,18.7
1970,19.2,18.8,20.2,22.5,22.1,23.1,22.5,22.8,22.8,22.4,19,19.3
1971,19.5,18.8,19.6,19.6,22.3,22.2,22.3,21.8,22.3,21.8,20.1,19.9
1972,20.4,18.6,19.9,21.9,22.1,23.1,23.1,22.1,22.5,22,22.3,19.8
1973,19.5,18.6,22.8,23.1,23.6,23.4,22.6,22.6,22.9,22.2,21.2,17.6
1974,20.9,18.3,21.3,21.5,22.4,23.7,22,21.9,22.5,21.4,20.2,19.9
1975,20.2,19.8,22.7,22.1,23,23.4,22.4,23.1,22.7,22.2,20.9,19
1976,18.8,18.2,21.8,21.2,23,22.2,23,22.7,23,22,21.2,20.5
1977,19.8,20.7,22.1,22.2,22.8,22.7,23.3,23.6,23.7,22.9,21.3,21.1
1978,19.4,19,20.2,22.3,23.5,23.3,22.7,23.3,22.9,21.9,21.9,20.9
1979,19.6,19.6,21.4,21.5,23.4,23.6,22.9,23.6,23.7,23.4,21,20.5
1980,21,20.4,22.4,22.6,23.3,24.1,24,24,23.4,22.6,21.1,19.3
1981,18.1,19.8,21.3,22.7,23.1,23.2,24,23.5,23.1,22.1,19.8,19.5
1982,20,20.7,21.4,22.4,22.9,23.3,22.4,22.6,22.8,21.9,21.1,20.6
1983,20.3,20.3,21.3,22.6,24.2,24.5,23.2,23,23.6,23.2,22,21.5
1984,19.6,20.8,21.1,21.9,23.6,23.6,22.9,22.9,23.4,23.3,20.6,21.4
1985,19.5,20.6,22,23.2,23.8,23.6,23.3,23.4,23.7,23.6,22.5,21.8
1986,20,20.7,19.9,21.9,23.6,23.5,23.8,23.8,23.6,23,22.9,22.5
1987,19.2,20.5,22.1,21.9,23.5,25.1,24.1,24.1,24.2,21.7,21.3,21.6
1988,21.2,21.1,21.9,23.3,24.3,24.1,24.1,24,24.3,22.6,22.8,20.2
1989,22.1,20.4,20.5,23.3,24.4,24,23.8,24,24.1,22.8,23,20.1
1990,22,20.9,21.5,23.9,23.8,25.1,23,22.9,22.8,22.6,21.5,20.8
1991,21.1,20.2,20.6,22.9,23.8,24.7,24.3,23.4,23.9,23.1,21,21.4
1992,21,19.8,22.1,23.1,23.2,24.5,23.8,23.5,22.9,22.9,22.6,22
1993,20.8,20.9,21.6,22.5,22.9,25.2,23.8,23.3,23.1,23.3,21.8,19.9
1994,20.8,21.3,21.3,23.2,23.5,24.9,23.5,24.2,23.7,23.1,21.8,21.2
1995,20.5,19.5,21.1,23.3,23.3,24.5,23.7,24.2,23.5,23.5,21.7,21.3
1996,19.1,19.2,19.8,23,24.2,23.9,23.9,23.2,24.2,23.4,21.3,20.9
1997,20.4,21.2,22.3,23.6,24.6,24.3,24.1,23.8,24,23.6,22.9,22.3
1998,21,20.5,21.3,23.3,24.1,24.4,23.9,24.2,24.6,23.4,22.1,20.5
1999,19.7,18.6,20.5,22.1,23.1,23.9,23.1,23,23.1,22.4,20,19.6
2000,18.9,18.8,21.1,21.6,23,23.5,23,23.1,23.7,22.7,21.7,20.1
2001,19.3,21.1,20.6,22.8,23.3,24.7,23.5,23.7,23.3,23.2,21.2,21.1
2002,20.1,20.2,21.9,21.9,23.4,24.8,23.7,23.6,23.8,22.8,21.3,21.2
2003,18.9,21.4,22.5,21.7,23.9,25.3,23.2,23.5,23.7,23.1,22,18.8
2004,20.5,20.7,21.7,22.5,23.2,23.7,22.9,23.1,23.3,23.2,21.2,20.1
2005,19.4,19.2,22.5,22.7,23.7,23.9,24,23.7,23.6,22.6,21.2,21.1
2006,20.7,19.6,21.2,22.5,23.5,23.5,23.7,23.9,23.7,23.7,21.2,21.8
2007,21.1,20,20.8,22.7,23.5,23.8,23.9,23.5,23.4,22.7,20.7,20.5
2008,20.1,20.7,21.8,22.6,24.2,24.2,23.6,23.6,24.2,22.7,19.9,20.9
2009,20.8,19.7,20.1,23.6,23.7,24,24.1,23.2,24,23.7,21.9,22.6
