1901,19.4,19.8,20.1,21.2,21.9,21.6,21.2,21.4,21.8,21.4,20.9,20
1902,19.4,19.8,19.8,20.9,21.5,21.4,21.3,21.3,21.6,21.3,20.8,20
1903,19.6,19.6,19.9,21,21.9,21.9,21.3,21.3,21.6,21.4,20.8,19.9
1904,19.4,19.4,19.8,20.7,21.6,21.5,21.1,21,21.5,21.2,20.9,20
1905,19.4,19.4,19.8,21.1,21.5,21.6,21.2,21.3,21.6,21.3,21.1,20
1906,19.3,19.4,19.9,20.9,21.7,21.4,21.2,21.4,21.6,21.5,21,19.6
1907,19,19.1,19.6,20.7,21.4,21.5,21.4,21.2,21.6,21.3,20.9,20
1908,19.4,19.4,19.8,20.9,21.7,21.7,21.4,21.5,21.7,21.4,20.8,20
1909,19.2,19.4,20,20.8,21.7,21.3,21.3,21,21.7,21.4,20.7,19.6
1910,19.1,19.2,19.7,20.7,21.3,21.5,21.2,21.3,22,21.2,20.9,20.1
1911,19.1,19.2,19.6,20.7,21.4,21.5,21.2,21.4,21.7,21.5,21.1,20
1912,19.5,19.7,20,20.8,21.7,21.5,21.4,21.3,21.7,21.4,20.9,20
1913,19.2,19.2,19.6,20.7,21.9,21.2,21,21,21.5,21.7,20.7,19.6
1914,19.2,19.3,19.9,20.7,21.4,21.3,21,21.1,21.7,21.4,20.9,20.2
1915,19.4,19.3,20,20.9,22.6,22.4,22.4,22.5,22.4,22.7,21.5,20.7
1916,19.5,19.5,19.8,21.6,22.4,22,21.8,21.3,22.1,21.3,20.8,19.5
1917,18.6,18.4,19.4,20.9,21.6,21.2,21.4,21.1,21.6,21.7,20.8,19.8
1918,19,19.1,18.7,20.4,20.6,20.9,21.4,21.8,21.8,21.6,20.7,19.8
1919,19.1,19.4,19.7,20.8,21.8,21.6,21,21.2,21.5,21.2,20.5,19.9
1920,19.2,19.5,19.9,20.9,21.8,21.3,21,21.1,21.5,21.2,20.8,19.8
1921,19.4,19.4,19.1,20.2,21.1,21.3,21.1,20.8,21.6,20.8,20.6,19.7
1922,19.1,19.1,19.1,21.1,21.1,20.7,20.7,21,21.5,21,20.2,19.3
1923,18.4,18.6,19.3,20.7,21.6,21.1,21,21,21.8,21,20.9,19.8
1924,19.4,19.6,20.9,21.5,21.9,20.9,20.7,21.6,21.3,21,20.7,19.5
1925,18.6,18.6,18.9,20.7,21.7,21.4,20.8,21.1,21.4,21.7,20.7,20.2
1926,19.7,20,20.4,21.9,22.6,21.9,21.3,21.2,21.4,21.4,20.9,19.6
1927,19.1,18.7,19.5,20,20.9,20.9,20.4,21.2,21.3,21.4,21,19.5
1928,19,19.4,19.6,20.9,21.7,21.3,21.2,21,21.5,21.5,20.8,19.7
1929,19.1,19.5,19.9,20.5,21,21.3,21.1,21.1,21.6,21.5,20.8,19.7
1930,18.9,19.2,20,20.9,21.6,21.3,21.1,21.2,21.5,21.3,21.3,20.3
1931,19.8,19.8,20.7,21.6,22.5,22,21.3,21.4,21.7,21.7,21,20.1
1932,19.3,19.3,19.8,21.5,21.6,21.6,21.1,21.6,21.9,21.4,21.1,20.1
1933,19.8,19.3,20.1,21.5,22.7,22.2,22.5,22.1,22.3,22.3,21.4,20.3
1934,19.3,18.7,19.3,21.9,23.2,21.9,22.1,22.6,23,22.7,21.7,20.8
1935,19.6,19.8,19.9,21.2,22,22.6,22,21.7,22.6,22.3,21.5,20.2
1936,19.5,19,20.2,21.4,22.7,22.2,22.3,22.7,22.6,22.4,22.1,20.2
1937,19.2,19.4,20.7,21.8,22.2,21.9,21.5,21.7,22.2,21.9,21.6,20.7
1938,20,19.8,19.7,20.4,21.2,21.5,21.4,21.4,22.1,22.2,20.9,20.1
1939,19.2,18.6,19.3,20.5,22,21.6,21.5,22,22.5,22.4,21.5,20.9
1940,20,20.9,21.2,22.1,23.3,22.5,22.3,22.4,23,22.5,21.5,21
1941,20.7,21.4,22.1,22.6,23.4,22.1,22.1,21.6,22.6,22.8,22.2,21.5
1942,20.9,19.2,22.2,22.8,22,22.5,22.5,22.7,23,22.7,22,21.1
1943,20.4,19.8,20,21.7,21.1,21.8,21.1,22.6,22.8,22.6,21.7,21
1944,20.2,19.3,20.1,21.7,22.3,22.4,22.3,22.7,23.1,23,21.8,20.4
1945,19.7,20.1,20.1,21.7,22.3,22.3,22.1,22.7,22.8,22.7,21.5,20.3
1946,19.9,19.5,20.3,20.6,22,21.8,22.1,21.9,22.4,22.1,21.2,20.5
1947,20,20,20,21.5,22.6,22.3,21.8,22.4,23.1,22.2,21.8,20.7
1948,19.6,19.8,20.2,21,22.3,22.3,21.8,21.9,22.3,21.6,21.2,20.1
1949,19.8,20,20.1,21,21,20,20,21.3,21.2,20.8,19.7,19.2
1950,18.7,18.1,18.3,20.5,21,21.1,20.6,21.1,21.7,21.3,20.9,20.2
1951,18.7,18.5,18.9,21.5,22,21.9,21.6,21.8,22.4,22.3,21.4,20.4
1952,19.3,19.8,20.2,21.5,22.5,22,20.7,21,21.1,21.7,20.3,19.2
1953,18.7,18.1,18.8,20.9,21,21.7,21.4,21.7,21.1,20.7,20.5,18.9
1954,18.6,18.6,19.5,20.6,21,20.9,20.7,21.6,21.4,19.6,19.3,18.4
1955,17.6,18.5,18,18.9,20.3,20.1,21.4,20.5,20.3,20,19.2,18.3
1956,18.3,19.1,19.3,20.8,20.5,21,20.5,20.5,20.4,19.9,19.5,18.1
1957,17.1,18.2,18.1,19.4,20.2,21.6,20.7,21.2,21.2,21.1,20,19.7
1958,19.4,18.8,19.9,22.8,23.2,22.6,22.2,22.3,22.6,22.2,20.3,19.7
1959,19.1,18.7,20.1,21.8,22,21.8,21.3,21.1,22.2,21.8,20.9,21.2
1960,19.6,20.2,20.4,22.2,22.6,22.4,21.8,21.7,22.2,22,21.4,20.2
1961,19.8,19.3,20,21.4,21.6,21.6,21.5,22,21.9,22.1,21.2,20.3
1962,19.3,19,20.3,20.7,22,21.7,21.8,21.8,22,21.9,21,20
1963,19.3,19.9,19.8,21,21.8,22,21.6,22.2,22.5,22.5,21.2,20.4
1964,18.6,19.3,19.4,21.2,21.6,21.5,21.4,22,22.6,21.4,20.9,18.3
1965,18.7,18.6,19,20.1,21.6,21.4,21.4,21,22.1,21.4,21.5,21
1966,20,19.3,19.8,20.7,21.5,21.8,22.2,21.6,22,21.6,21,19.8
1967,19.2,19.2,19.2,20.7,21,21.3,20.8,20.6,21.6,21.3,20.3,19.5
1968,18.3,19,19.1,20.7,21.5,21.5,21,21.1,21.8,21.4,20.9,19.8
1969,19.7,20.6,21.1,22.2,22.7,22.8,22.1,21.5,22.4,21.1,21,20.7
1970,20.2,19.4,20.1,21.4,22.3,22.2,21.7,21.9,21.3,21.6,20.4,20.7
1971,19.1,19.2,19.4,20.7,21.4,21.1,20.9,20.8,21.8,21.2,20.6,19.2
1972,19.3,19.3,20.3,21,21.7,22.2,21.9,21.6,22.5,21.7,21.1,20.9
1973,20,20.2,20.8,21.2,21.6,22,21.8,21.7,22.3,21.7,20.7,19.5
1974,18.4,19.2,19.6,20.5,21,21.6,21.2,21.1,21.5,21.4,21,19.4
1975,19,19.1,20.3,20.4,21.9,21.2,20.8,21.6,21.4,21.2,20.8,19.1
1976,18.3,18.7,19.1,20.9,21.4,21.1,21.1,21.3,22,21.9,21.3,19.8
1977,19.3,19.6,20.5,21.2,22.3,21.5,21.4,21.7,22.3,22.2,21.6,19.6
1978,18.6,20.1,20.7,22,22.1,21.8,21.5,21.3,21.8,21.6,21.4,20
1979,18.8,19,20.8,21.6,22,22.6,22.2,21.9,21.9,22.2,22,21.2
1980,20.2,20.3,20.6,22.1,23,22.3,22.3,22,22.4,22,21.2,20.8
1981,20.2,21.3,20.6,21.7,22.3,21.8,21.9,21.9,21.8,22.1,21.7,21.7
1982,19.9,20.7,20.1,21.8,22.2,22.2,21.4,21.7,21.6,22,21.2,21
1983,20.7,20,21.8,22.1,22.5,21.7,21.8,22.5,22.7,22,21.7,20.7
1984,20.8,21.7,21.4,22.3,22,22.7,22.4,22.4,22.7,22.4,20.5,20.6
1985,19.9,20.5,20.9,22.1,22.7,21.8,21.2,21.2,21.6,21.5,20.3,19.4
1986,19.4,18.8,19.3,21.3,21.3,21,20.6,20.6,20.7,20.4,20.7,19.7
1987,19.5,20.6,21.7,23.2,22.6,23.4,22.9,22.4,23,22.4,22.2,21.4
1988,19.8,20.7,20.1,21.8,22.7,22.4,22.3,21.9,22.2,21.8,21.7,20.1
1989,19.7,19.5,19.9,21.1,22.5,21.7,22,22.2,22.5,22.1,20.9,19.4
1990,19.5,18.6,19.5,21,20.7,21.1,20,20.8,20.5,20.8,20,18.6
1991,17.8,19.5,20.1,20.3,20.8,21.6,21,21.9,22.5,22.3,21.4,19.4
1992,20,20.4,21.1,22.4,22.7,22.7,21.6,22.4,21.6,22.4,22,20.7
1993,20.5,20.5,20.7,22.5,23,22.7,22.3,22.3,22.2,22.5,22.1,20.9
1994,19.6,20.7,21.1,21.9,22.3,22.2,22.1,22.3,23,22.5,22.2,21.2
1995,20.2,20.2,21.4,22.2,22.5,23.1,22.5,22.4,22.8,22,21.9,21.5
1996,20.1,21.6,20.7,21.2,21.7,22.4,22.3,22.7,22.8,22.3,21.9,20.3
1997,19.4,20.1,19.3,21.7,22.2,22.4,22.1,22.1,22.9,23.1,22.1,21
1998,20.9,21.7,21.9,23,23.2,23.2,22.4,23.2,23.3,22.5,22.5,21.3
1999,20,20.4,20.9,21.8,21.6,22.2,22.1,22.5,22.3,22,22.1,20.3
2000,18.9,19.3,20,21.1,21.9,21.2,21.3,21.9,22.7,22.5,21,20.2
2001,19.6,20.1,20.2,21.2,22.2,21.9,22.4,23.5,22.5,22.8,22.3,22.3
2002,20.2,20.4,20.5,21.7,22.1,22,21.7,22.1,23.2,22.7,22.4,21.6
2003,20.6,21.6,21.4,22.6,22.8,22.8,22.4,23.1,23.2,23.3,22.2,22.2
2004,20.2,20.4,21,22.6,21.9,21.7,21.9,22,22.9,22.5,21.1,20.6
2005,20.9,20.2,21.2,23,23,22.8,23.3,22.8,23.1,22.7,21.7,19.8
2006,19.4,20,21.1,21.7,23,22.9,22.6,23,23.1,22.9,22.6,21.7
2007,20.9,18.4,21.6,22.6,23,22.9,23.3,22.1,22.3,22.1,22.3,21
2008,20.4,20.2,20.6,22.9,21.6,22.6,22.4,22.6,23.2,22.1,21.6,20.6
2009,19.8,20.5,21.3,22,22.4,22.1,22.7,23.4,23.7,22.4,22.6,21.7
