1901,20.6,21.7,23.2,23.4,23.2,22.9,22.4,22.2,22.7,22.3,21.3,19.9
1902,19.8,21.4,22.6,22.8,22.2,22.5,23.6,23.4,23.4,22.5,21.4,20.3
1903,20.9,21.2,23,23.9,22.8,22.5,23.1,22,22.8,22.2,20.8,19.6
1904,20.1,21.1,22.4,23.6,23.3,22.8,22.4,22.2,22.7,22.3,21.3,20.4
1905,20.6,21.7,23.2,23.4,22.5,22.9,22.9,22.2,22.8,22.8,21.6,20.4
1906,19.6,22.3,23.1,22.8,23.9,23.7,22.9,22.7,23.1,21.7,20.6,18.5
1907,19.2,21.5,23,23,22.8,22.8,22.7,21.9,22.6,21.8,21.1,18.6
1908,20.4,20.7,23.9,24.1,24.7,22.9,22.7,21.8,23.5,24.1,20.7,19.3
1909,19.7,21.3,22.4,22.3,22.5,22.2,22.5,22.7,22.8,21.5,20.1,20
1910,19.7,20.8,22.8,23.9,23.3,22.9,23.5,22.8,22.7,21.6,20.6,20.6
1911,20.1,20,22.7,23.3,23.1,23.5,21.7,22,22,21.4,20.6,19.2
1912,19.3,21.3,22.1,22.9,22.6,22,21.1,21.3,21.7,21.8,21.3,19.5
1913,20,20.4,22.6,22.9,22.3,21.7,22.4,22.2,22.7,22.3,21.3,20.4
1914,19.9,21.7,23.2,23.4,22.4,22.9,22.4,22.2,22.6,22.6,20.9,20.6
1915,20.6,21.7,23.1,23.7,23.1,22.6,22.1,22,22.6,22.2,21.4,20.1
1916,20.3,22,22.7,23,23.2,22.8,22.1,22.2,22.7,22.3,21.5,20.3
1917,20.7,22.1,23.2,23.1,23.2,22.8,22.2,22,22.6,22.3,21.5,20.6
1918,20.4,22.1,23.2,23.1,23.3,22.8,22.4,22.2,22.7,22.3,21.3,20.4
1919,20.6,21.7,23.2,23.4,23.2,22.9,22.4,22.2,22.7,22.3,21.3,20.4
1920,20.6,21.7,23.2,23.4,23.2,22.9,22.4,22.2,22.7,22.3,21.3,20.4
1921,20.6,21.7,23.2,23.4,23.2,22.9,22.4,22.2,23.1,22.6,22.1,21.2
1922,21.3,22.4,23.9,23.7,23.7,23.5,22.2,22.1,23,22.8,22.2,21.3
1923,20.6,21.7,23.2,23.4,23.2,22.9,22.4,22.2,22.7,22.3,21.3,20.4
1924,21,22.5,23.7,23.9,23.8,23.5,23.6,23,23.6,23.1,22.2,21
1925,20.9,21.6,23.2,23.4,23.7,23.8,23.6,23.3,23.2,22.1,21.3,20.2
1926,20.6,21.7,22.8,22.5,23.7,23.6,23.3,23.2,23.2,22.3,21.5,19.8
1927,20.6,21.7,23.2,22.3,22.4,22.3,22.6,23.1,23.4,23,22.5,20.9
1928,20.5,21.7,23.8,24.3,23.9,22.8,22.9,22.5,23.3,23.1,22.5,20.7
1929,20.6,22.6,23.9,23.4,23.5,22.5,21.9,21.6,22.3,22.3,21.3,20.7
1930,20.8,21.7,23.1,23.3,22.5,22.2,21.7,21.5,22.2,21.9,21.2,20.4
1931,20.7,21.8,23.2,23.3,23.9,23.4,22.8,22.6,23.2,22.8,21.3,20.6
1932,20.6,22.6,23.2,23.4,23.2,22.9,22.4,22.2,22.7,22.3,21.3,20.4
1933,20.5,21.9,23.3,23.9,23.5,23.2,22.5,22.3,22.8,22.6,21.4,20.3
1934,20.2,21,22.8,23.7,23.7,23.2,22.6,22.2,22.7,22.5,21.8,20.8
1935,21.1,22.3,23.6,23.4,23.1,22.4,22,21.8,22.7,22.6,21.7,20.4
1936,20.5,21.8,23.3,23.6,23.6,22.6,21.8,21.8,22.4,22.8,21.9,20.6
1937,20.8,22,23.4,24.3,24.1,23.2,22.5,22.5,23.2,22.8,22.4,20.5
1938,20.8,21.5,23.3,23,22.9,23.2,22.6,22.5,22.9,22.6,21.4,20.3
1939,20.3,21.9,23.3,24,24.4,23,22.7,22.5,23.2,23,21.9,20.7
1940,21.2,22.5,23.8,23.2,23.9,23.3,22.7,22.4,23,22.7,21.9,20.6
1941,20.3,21.8,23.5,24.1,24.1,22.7,22.6,22.5,23.4,22.8,22.1,20.5
1942,20.2,21.8,23.2,24.2,23.6,23.8,21.9,22,22.9,22.7,21.8,20.6
1943,20.2,21.2,22.5,23.5,23.7,22.3,22.3,22.2,22.5,22.2,21.7,20.7
1944,20.5,21.3,23.6,24.1,23.8,23.4,22.3,22.3,23.1,23.2,21.7,20.9
1945,20.8,21.2,22.7,24.2,23.9,22.9,22.2,21.9,22.5,22.4,21.6,20.4
1946,20.2,21.8,23.2,23.9,24.1,22.9,22.7,22.5,23.7,23.3,22.1,20.8
1947,20.9,21.6,23.6,23.6,23.3,23.9,22.9,22.3,22.8,22.7,22.6,20.7
1948,21.7,22.3,23.1,24,24.2,22.5,22.4,22,22.8,22.5,21,20.6
1949,20.3,21.1,23.3,24.3,23.8,22.7,22,22.1,22.5,22.8,21.4,20.3
1950,20.3,21,23.7,24,23.7,22.4,22.1,21.8,22.4,22,20.8,20.2
1951,20.2,22,24.7,24.3,24.1,23.1,22.7,21.9,22.2,24,23,21.5
1952,20.5,21.6,24.2,24.1,24.2,23.1,22.3,22.2,23.7,22.3,21.7,20.7
1953,20.6,21.9,23.3,23.9,25.2,23.2,22.3,21.9,23,22.6,22.4,21.5
1954,20.4,22.5,23.7,25.1,23.7,22.7,21.1,21.6,23,21.6,21.6,21
1955,22.4,21.3,23.7,24.1,24.3,23.1,22.2,21.9,22.9,22,21.2,21.6
1956,19.8,20.1,24.1,23.1,23.8,22.1,21.4,21.6,22.3,23.8,21.1,21.6
1957,20,20.6,21.7,22.6,23.2,22.5,21.3,22.5,22.8,22,22.3,20.4
1958,21.2,21.6,22.4,23.3,23.3,22.5,22.1,21.7,22.9,21.8,20.7,21
1959,21.6,22.6,22.1,23.6,23.7,23.2,21.8,21.2,22.6,23.2,21.6,20.6
1960,20.7,20.7,22.8,23.1,22.6,22.5,21.7,21.5,22.2,21.6,21.3,21.7
1961,19.9,21.3,22.5,23.8,23.6,22.3,21.6,21.4,22.7,22.2,21.7,20.4
1962,19.3,19.7,22.8,23.4,22,21.3,21.5,21.3,23.1,21.5,21.8,19.9
1963,21,22,22.7,23.2,22.5,21.7,21.7,21.4,21.2,21.8,21.9,21.4
1964,20.3,20.8,22.3,23.1,22.8,22.1,21.1,20.5,21.6,20.8,19.3,20.3
1965,19.9,19.9,21.3,22.5,22.2,22.2,21.6,21.5,22.7,22.3,21.6,19.8
1966,19.8,22.7,23.2,22.6,23.6,22.6,23.1,22.8,22.7,21.5,19.6,17.8
1967,18.8,21.8,23.3,23.5,23.1,22.8,22.3,21.9,22,21.9,21.8,19.7
1968,18.9,22.2,22.5,22.8,23,22.4,22,21.9,22.8,22.1,21.1,20.8
1969,21.9,21.9,23.2,22.5,22.9,23.3,22.6,22,22.8,22.5,21.8,20.5
1970,22.5,22.8,24.1,24.3,24.1,23.5,22.1,22.6,23,23.2,20.8,20.2
1971,20.7,20.6,22.7,23.9,22.7,22.6,22,22.1,22,22.5,21.5,20.1
1972,20.3,22,22.9,23.6,22.9,22.4,22.4,22.3,22.6,22.6,21.7,20.7
1973,20.6,21.4,23.4,24.2,23.3,22.7,21.9,22.1,22,22.4,20.9,19.1
1974,20.7,20.1,23,22.5,22.9,22.4,22.3,21.3,21.6,21.6,19.5,19.4
1975,19.7,21.1,22.4,22.9,23.3,22.5,22.5,21.6,22.2,22.5,20.6,19.9
1976,20.7,22.5,23.8,23.5,23.9,23.3,22.1,22,22.9,22.8,22.1,21.3
1977,21.9,21.5,23,23.4,23.3,23.3,22.7,22,23,22.7,21.6,21.1
1978,21.1,22.5,23.3,23.4,23.3,23.5,22.2,22.5,22.9,23,21.8,21
1979,22.1,22.2,23.3,23.7,23.3,22.8,22.1,21.8,22.8,22.8,21.3,21.2
1980,20.7,22.3,24,23.7,23.8,23.1,22.4,22.1,22.8,22.8,22.8,20.5
1981,21.1,21.7,24.5,24,23.8,24.2,22.4,22.7,23.2,22.1,21.8,19.8
1982,21.7,22.6,23,23.6,22.6,23.4,22.9,22,22.3,21.5,21.9,20.5
1983,19.3,22.6,23.8,24.2,23.4,23.3,23.5,23.2,23.4,22.7,21,20.2
1984,19.8,19.3,23.6,23.8,23.3,22.8,22.5,22.7,22.8,21.6,20.9,20.8
1985,21.1,20.8,22.8,23.9,23.7,23.5,22.5,22.9,22.6,22.6,21.9,20.3
1986,19.7,22.9,23.5,23,23.8,23.8,23.3,22.3,22.9,22.1,21.6,20.4
1987,20.3,22,24.1,23,22.6,23,23.7,23,23.9,23.4,21.5,21
1988,21.7,23.1,23.4,24.2,24,23.4,22.7,22.3,22.9,22.7,20.1,19.9
1989,21.2,21.2,23.4,23,22.4,23.2,22.6,22.2,23.4,22.7,21.3,21.9
1990,21.1,22.8,23.2,23.3,23.8,23.1,22,22.4,23.3,22.2,22.3,20.5
1991,21.2,22.4,23,23.6,23.2,23.3,22.7,22.3,22,22.3,20.6,20.7
1992,20.1,21.8,23.7,24.1,24.2,23.8,22.6,22,22.4,22.1,21.2,21.1
1993,20.3,20.8,23.3,23.7,22.8,23.1,22.7,22.4,22.6,21.9,21.3,20
1994,20.1,21.4,23.7,24.6,23.7,23.7,22.5,22.5,22.2,23,20,20.7
1995,19.8,21.9,22.7,23.8,23.9,24,22.8,22.5,23.2,23.9,22.7,21.3
1996,21.2,22,23.8,25.6,22.6,22.4,22.3,22.9,23.1,22.2,21.1,19.6
1997,20.9,21.3,23.6,23,23.2,22.8,22.5,22.9,23.1,21.5,20.6,19.6
1998,21,22.3,23.4,23.9,24,23.8,22.4,22.1,22.1,22.5,20.5,19.7
1999,20.2,21.2,23.1,23.7,23.5,22.9,22.3,21.6,23,21.6,20.5,19.6
2000,19.4,21.2,23.1,24.2,22.8,23.2,23.3,22,22.6,21.8,23,19.9
2001,21.1,21.1,23.5,24.5,22.9,22.8,22.6,21.1,22.4,22.3,20.6,20.4
2002,20.2,21.9,23.2,24.3,24.9,23.1,22.9,22.3,22.9,20.8,21.8,21.3
2003,21,22.7,23.6,24.3,24.3,23.8,22.5,22.7,23,22.1,21.3,20.4
2004,21.6,21,22.8,24,23.6,23.5,22.8,23.1,22.3,21.3,20.9,20.4
2005,20.4,21.9,23.9,24.2,23.8,21.1,22.4,22.8,23,22.8,21.5,20.2
2006,20.5,22.8,23.6,23.5,23.5,23.9,22.8,21.5,22.7,23.1,21.5,20.9
2007,20.9,22.3,23.4,23.8,24.1,23,21.9,21.6,22.3,21.5,22.5,19.7
2008,20.3,20.6,21.1,22.3,23.5,23.3,22.5,22,23,22.7,20.8,19.6
2009,20.7,21.8,24.6,24.3,24.3,23.6,23.1,23.1,24.1,21.9,21.8,21.5
