1901,20.2,20.1,19.6,17.8,15.8,13.4,14.5,14.5,15.9,17.5,17.7,18.7
1902,20.4,21.1,20,18.8,16.9,15.3,15.4,14.1,16.2,17.7,21.4,21.6
1903,19.7,21.4,21.3,17.5,15,15.3,13.4,15,16.6,18.1,19.6,21.3
1904,20.7,20.8,20.2,17.5,14.6,13.2,13.6,14.6,16.8,17.8,18.8,19.6
1905,20.2,21.5,19,18.2,17.1,14.8,14.1,15.2,16.7,19.4,19.1,21.3
1906,19.5,19.7,19.6,18.4,17.4,15.6,15.2,15.6,16.5,18.7,19.3,20.3
1907,19.9,20.3,20.2,18.2,14.6,15.1,13.2,13.6,17.6,17.5,19,21.1
1908,20.7,20.1,19.4,18.4,16.2,14.9,14.6,14.1,16.3,17.6,19.7,21.1
1909,21.3,22,20.3,18,15,14,14.6,14.8,16.3,16.9,18.7,19.3
1910,21.5,20.4,20.6,19.2,14.7,15.2,13.1,15.3,16.3,16,17.9,19
1911,21.5,20.6,19.1,18.1,16,12.8,12.4,14.2,16.1,17.3,20.8,21
1912,20.5,21.6,19.8,18,17.2,14.6,12.6,14.8,14.2,16.4,20.3,19.7
1913,20.2,20.8,20.8,18.8,16.2,13.6,14.9,14.9,17,17.8,18.8,19.1
1914,21.3,20.5,21.1,18.1,15.1,16.5,15.8,15.4,18,18.8,20.4,19.7
1915,21.7,21.4,20.2,20,18.9,14.4,14.1,15.8,17,17.4,18,19.4
1916,20.3,19.5,19.3,17.9,16.6,15.5,13.9,14.6,17.6,16.9,19.1,19.4
1917,20.5,20.2,19.5,17.2,14,12.4,12.6,13.1,16,16.9,17,19.2
1918,20.7,20.3,19.8,18.1,16.6,14.1,12.6,13.3,15.7,17.8,18.6,19.1
1919,19.4,19.6,19.6,18.9,17.7,15.7,14.5,14.4,15.7,18.1,19.6,20.1
1920,21,20.7,20,18.6,15.7,14.4,14.7,12.7,15.5,18,19.3,19.6
1921,20.6,21.1,20.6,17.9,16.1,13.8,12.6,16.1,15.9,16.9,17.6,19.9
1922,21.2,20.8,20.7,18.6,16.5,14.6,13.8,15.8,16.8,17.3,18.9,20.1
1923,21,20.5,20.7,19.7,16.4,14.6,12.5,14.8,16.4,17.3,18.9,21.4
1924,19.8,19.9,20.9,19.2,16.5,14.6,13.6,13.9,16.1,15.9,18.4,19.5
1925,20.8,20.9,19.6,19.5,16.7,12.9,11.9,16,16.8,16.6,19.1,20.6
1926,20.7,19.2,20.2,18.4,15.5,15.2,13.6,14.8,17.6,18.2,19.5,20.2
1927,20.3,20.2,20.5,19.1,15.6,13.8,13,14.3,16.5,17.6,19.6,19.8
1928,20.5,21.4,21.1,20.2,16.6,15.5,14.3,14.5,17.1,17.8,19.2,20.3
1929,21.2,21,20.2,17,15.1,14.9,13.6,15.1,17.4,19.2,17.9,21.4
1930,21.4,20.9,21,18.3,16.6,16.6,14.7,15.4,16.1,18.3,18.6,19.9
1931,21.4,19.9,20.5,19.1,16.2,14.2,14.5,14.4,15.7,17.7,18.5,20.5
1932,20.1,21.7,21.1,20.1,16.3,14.5,15.4,14.4,17.9,19.1,19.7,20.7
1933,20.5,21.2,19.8,17.4,15.8,13.4,13.1,14.6,16.5,17.7,17.8,18.8
1934,20.9,21.2,20.9,19.2,16.9,15.3,13.4,14.8,16.8,17.3,19.4,19.9
1935,20.1,20.5,20.7,17.5,14.5,15.1,15,14.4,16.3,17.9,18.6,20.8
1936,21.3,19.7,19.8,18.8,18.4,16.1,14.3,13.6,15.6,17.8,18.5,19.8
1937,19.2,20.9,20.5,18.2,15,14.4,14.6,15.7,15.8,17.2,17.8,18.3
1938,22.3,20.5,21.1,18.4,15.7,14,13.5,14.2,16.5,17.7,18.9,19.5
1939,20.8,21,21.1,18.4,17.1,14.8,12.6,15.3,15.3,17.6,19.1,19.7
1940,21.2,19.6,20.7,19.8,17.3,14.9,15.1,15.1,15.9,17.6,18.4,22
1941,22.3,23,20.7,21.1,17.8,14.2,13.9,16.9,15,18.6,19.8,21
1942,22.5,22.7,21.4,19,16.7,15,12.6,15.4,16.4,18.8,19.7,19.2
1943,20.4,20.9,21.2,17.5,17,15.9,14.2,13.6,16.1,18.7,19.6,19.4
1944,21.8,21.4,21.9,18.2,16,14.9,13,15.4,18.1,20.9,18.7,21.2
1945,21.4,22.3,20.5,18.6,15.6,14,14.4,16.9,16.7,19.4,19.4,20.4
1946,21.7,23,20.2,17.6,17.6,14.4,14.2,16.2,19,19.6,19.5,20.8
1947,22,22.2,19.5,18.1,17.5,15.9,13.4,14.4,16.9,16.6,17.6,19.7
1948,22.2,21.6,19.4,18.4,16.5,14.5,15.6,14.4,17.3,18.1,19.2,20.2
1949,21.3,20.4,21.7,18.2,15.7,15.4,13.8,15,16.8,17.8,18.3,19.9
1950,21.5,21.4,20.7,19,17.7,15.5,14.4,16.8,18.1,18.5,18.6,20.8
1951,21.3,20.7,20.3,16.9,16.3,13.9,12.9,13.9,17.1,19.2,19.7,18.7
1952,21.7,21.8,20.9,18.4,15.6,15.2,14.6,16.7,17.5,19.5,19.7,21.1
1953,22.4,21.2,21.4,18.8,16.9,15.2,13.4,15.4,18.5,19.2,19.2,19.9
1954,22.7,22.3,21.4,18.7,17,16,15.1,15.5,18.5,18.6,19.4,20.7
1955,21.5,22.1,21.1,18.7,17,15.1,14.7,15,17.7,17.6,17.9,21.1
1956,24,21.8,20.7,18.8,15.8,13.4,13.8,13.8,18.4,18.2,18,20
1957,21.8,21.1,20.8,18.7,15.9,14.7,14.3,16,16.9,20.2,19.2,21.1
1958,22,22.8,20.8,19,16.8,15.1,15.3,17.2,17.6,19.7,21.4,22.5
1959,22.5,22.9,20.5,21.7,17.9,15.1,16.2,16.1,19.1,20.2,19.8,20.8
1960,21.5,21,20.2,18.7,15.6,14.7,14.7,16.3,17.9,20.9,19.7,20.8
1961,22,21.8,21,20.2,17.2,15.9,15.3,16.7,20.6,21.2,21.1,21.1
1962,21.5,21,21.4,18.9,16.1,13.5,13.5,15.2,17.8,18,19.5,20.1
1963,23.1,21.4,22.5,19.3,16.1,14.6,14.8,16.3,19.9,20.6,21,21.1
1964,21.2,21.4,20.8,19.5,16.4,14.3,12.8,16.2,18.2,18.4,18.5,20.2
1965,20.7,21.5,20.3,19.5,17.1,16.3,14.9,16.7,19.4,19.4,20.3,22.8
1966,22.8,23.3,21.6,19.3,17.3,16.2,15.9,15.4,17.2,19.7,19.9,22.1
1967,22,22.5,21,19.2,17.5,15.9,14.8,17.5,18.3,21.2,19.4,19.6
1968,22,20.6,20.8,17.4,14.3,13.9,14.3,14.5,17,18.9,20.2,22.3
1969,23.1,23,21.4,18.9,17.7,15.8,15.2,16.2,18.4,18.1,20.4,20.1
1970,22,22.1,21.6,19.3,18.4,16.8,14.8,15.1,17.3,18.2,18.4,22.9
1971,23,22.5,22.1,19.4,17.1,15,15,15.9,17.1,17.8,18.6,20.9
1972,22,21.2,22.1,18.4,17.7,17.5,15.3,16.7,18,19.4,20.4,21.6
1973,23.2,23.3,21.3,22,17.4,17.2,16.5,15.8,17.2,18.5,17.9,21.4
1974,21.1,21.8,21.2,18.9,17.1,14.6,15.1,16,17.7,18.3,20.1,19.7
1975,20.9,21.9,22,18.2,16.1,14.9,13.6,17.3,18.2,18.7,19.7,21.3
1976,22.3,21.1,20.9,19.5,16.5,15.3,14.1,15.5,16.9,17.5,20,20.7
1977,21.8,22.7,22,19.4,17.6,16.1,17.5,16.5,18,19.6,20,20
1978,22.3,21.1,21.5,18.6,16.2,14.7,15.8,17.6,17,19.6,20,20.6
1979,19,20.8,20.1,18.6,17.6,14.6,14.2,16.8,16.7,19.5,19.8,21.2
1980,20.7,21.6,22.5,19.7,18.4,15.5,16,16.4,16.2,19.3,19.9,22.1
1981,21.9,22.1,21.6,19,17.7,14.9,13.7,15.9,18.5,17.6,20.8,20.8
1982,19.9,21.8,20.4,17.7,16.1,16.7,15.7,16.5,17.3,19,21.7,20
1983,21.7,22.1,21.2,19.9,18.5,17,16.1,15.4,15.5,18,20.7,21.2
1984,23.6,23.3,21.4,19.2,19.3,16.8,16.3,15.1,16.9,19.9,20.4,20.2
1985,20.3,22,22.1,20.7,17,14.2,14.3,16.7,16.8,19.2,20.3,20.5
1986,22.6,22,22.1,20.9,18.9,15.8,14.5,16.5,17.2,19,21.2,21
1987,22.8,21.7,21.3,21,17.1,15,16.9,15.6,16.5,19.5,20.8,21.7
1988,24,21.5,22,20,17.6,14.6,12.9,16.1,18.8,18.3,19.4,21.1
1989,22,21.9,22,21,16.7,15.5,14.1,15.7,17.3,17.2,20.3,20.6
1990,23.4,22.1,22.6,22.1,16.9,15.8,14.3,14.9,16.5,20.2,22.3,20.9
1991,21.1,21.2,21.4,20.1,18.1,17,15.1,16.1,16.9,18.8,21.1,22.1
1992,21.2,21.5,21.7,20.6,19,17.3,15.3,15,16.7,18.7,20.2,20.9
1993,22.4,21.2,22.2,20.8,17.2,15.6,16.7,15.3,17.6,19.9,22.2,20.9
1994,21.3,23.3,21.2,19.8,18.3,15.2,15.5,15,17.2,20,21.1,22.2
1995,23.4,22.1,21.9,20.1,17.3,16.1,16.8,18.6,17.8,18.3,20.5,20.6
1996,22.7,22,22.1,21.2,16.5,15.8,14,14.9,16.6,19,20,22.1
1997,21.6,22.1,21.1,19.8,16.5,15.3,16,16.6,18.9,21.1,22.1,23.3
1998,23.8,23.1,22.8,20.8,17.2,15.4,15.5,18,18.4,18.5,20.4,21.9
1999,22.7,22.2,22.4,19.5,16.5,15.7,15.4,15.5,18.1,17,19.3,21.1
2000,21.8,21.4,21.2,20,17,15.9,14.1,15.7,17.4,21.3,20.6,21.5
2001,23.5,23.6,22.9,21.7,18,16.6,16.3,16.7,17.8,20,21,21.4
2002,22.5,21.2,23.3,22,18.9,18,15.6,18.5,17.5,22.3,21.5,22.5
2003,21.1,24.1,22.3,20.9,17.8,17.8,16.4,15.6,18,19.9,20.9,22.2
2004,21.9,21,21,20.6,17.3,15.8,15,16.3,20.1,19.5,20.9,21.1
2005,22.4,22,22.1,21.6,18.6,17.1,15.9,17.7,17.9,21.1,20,20.6
2006,23.6,23.1,22.1,20.3,16.9,15.9,16.6,17.5,17.9,19.8,20.3,21.9
2007,22.5,22.6,23.3,21.2,17.5,17.3,15.9,17,19.3,21,20.5,22.2
2008,21.6,22.1,21.5,21.2,17.4,16.3,16.1,17.5,17.7,20.7,20.4,20.8
2009,22.3,22.9,22.9,20.2,18.5,15.7,16.5,16.9,19.4,19.8,23.1,21.8
