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