1901,20.1,21.2,24.3,24.6,25.1,23.3,21.5,21.3,22,23,22.2,20.2
1902,21,21.4,25.1,26.2,26.3,23.9,21.8,22.4,21.9,22.1,22.7,20.6
1903,20.7,21,21.8,24.5,24.5,22.5,21.1,20.9,20.6,21,20.9,19.6
1904,20.3,23.3,25.5,25.7,24.5,23.3,20.6,21.2,21.1,20.8,20,20.3
1905,20,18.7,23.1,24.5,26.1,23.5,21.8,22.7,21.3,21.4,21.1,18.4
1906,20.9,20.3,23.4,24.6,25.1,24.3,21.4,21,21.3,20.7,20.6,20.5
1907,22.5,22.3,25.2,24.7,24.1,23.5,21.4,21.9,22.2,21.5,19.2,20.2
1908,20.9,21.7,24.5,24.6,25.7,24.3,21.5,22,21.2,21.5,20.7,20.2
1909,21.6,22.6,25.1,24.8,25.4,24,21.8,20.9,20.4,21.2,22.3,18.4
1910,20.5,20.7,23.2,24.3,24.8,23.4,21.7,22,20.6,20.9,21.3,19.7
1911,21.7,21.7,23.2,23.9,23.1,23.3,21.1,22.5,22.2,21.1,18.9,18.7
1912,20,20.7,22,24.3,25.2,21.7,21.3,22.3,21.6,20.9,19.5,18.3
1913,19.8,20.5,22.4,23.3,24.5,21.6,21,22.1,20.3,20.6,20.8,18.9
1914,21.6,20.8,22.1,23.6,23.9,22,21,21.1,20.9,21.5,19.8,17.4
1915,19.3,21.3,21.7,23.6,25.5,24,21.8,22.2,20.6,21.4,20.8,20.3
1916,21.7,22.7,24.9,24.7,25,23.9,20.3,20.3,20.1,20.4,19.4,19.3
1917,19.5,20.9,22.2,23.1,24.6,21.1,20.6,21,20,19.7,20.6,18
1918,18.9,20.9,20.7,23.6,24.1,21.5,20.6,20.7,20,21,20.2,18.7
1919,17,20.6,21.6,22.6,24.4,22.8,20.6,21.5,20.3,20.8,20.1,18.6
1920,17.9,21,23.2,25,22.8,21.6,21.3,21.3,20.6,20.6,20,18.5
1921,18.5,19.5,22.3,23.7,23.4,22.9,20.6,21.3,20.2,19.7,19.7,18.7
1922,19.3,21.3,22.8,24.6,24.4,21.8,21.1,21.6,20.2,20.3,19.9,18.7
1923,19.3,19.4,22.4,23.8,25.7,22.7,21,21.5,21.1,19.9,19.5,18.9
1924,18.5,20.3,23.7,24.3,23.3,22.1,20.9,21.6,19.9,20.1,19.1,18.3
1925,18,19.8,21.5,23.3,22.5,21.6,20.9,21.4,19.9,20.8,19.1,16.9
1926,18.1,20.7,23,22.7,23.6,21.7,20.4,20.7,20.4,20.7,20,20.1
1927,19.3,20.1,23,24.6,26.2,21.6,21,21.3,20.8,19.8,19.7,18.7
1928,18.4,20.9,23.2,24.3,24.7,24.4,21.6,21.6,20.7,21,19,19
1929,19.9,22.5,23.7,27.2,24.5,22.9,20,20.6,20.2,19.8,19.8,16.8
1930,18.1,20.1,22.8,23.3,23.9,22.2,20.9,22.6,21.3,20.7,19.2,18.9
1931,17.7,19.8,22.7,23.2,23,23.9,21.3,21.3,19.9,21.2,20,18.7
1932,19.4,21.3,22.5,24.3,24.7,24.3,21.5,21.5,20.6,20.4,18.6,18.4
1933,16.9,20.2,22.2,25.4,26.9,23.3,22.4,20.1,20.1,19.6,18.8,18.2
1934,18,19.3,22.3,21.9,22.3,23.4,20.9,20.6,20.2,19.9,20,19.4
1935,19.1,19.5,22.3,24.1,24.1,21.7,20.2,20.3,20.2,19.4,21.3,19
1936,20.4,21.8,23,22.9,23.2,23.8,20.9,20.8,19.7,20.4,21.2,19.8
1937,22.4,21.7,21.8,22.8,22.3,21.6,20.3,20.6,20.4,20.1,20.4,18.7
1938,20.5,19.3,22.2,23.1,23.2,21.4,20.2,21,19.6,20.5,20.3,19.3
1939,18.5,20.5,22.4,23.8,24.8,22.5,22.5,22.7,21.1,21.3,20.2,19.5
1940,19.4,21.6,23.5,26.5,26.2,24.7,20.6,21.7,21.3,21.8,21.2,19.6
1941,18.9,21.2,23.3,24.1,25.6,22.1,20.7,21.8,21.7,22.3,21,19.8
1942,20,22.1,24.5,27.3,27.3,25.2,21.1,22.1,21.9,22.3,20.4,20.6
1943,20.5,20.9,24.7,25.6,26.2,22.3,23.2,22.1,22.1,20.8,19.5,18.6
1944,19.3,21.8,25.7,26.5,25.8,24.4,22.6,21.8,19.8,19.5,21.3,18.5
1945,20.9,21.9,26.6,27.3,25.3,26,22.8,21.9,22.2,20.6,21.4,18.8
1946,18,21,25.9,26.8,25.9,24.5,23.9,22.6,23.3,21.6,21.1,19
1947,20.6,21.9,25.7,26,24.8,26,23.3,22.2,21,21,21.7,19
1948,18.7,22.6,26.4,25.5,26.7,25.2,22.1,22.6,22,21.7,21.7,21.3
1949,20.4,22.9,24.7,26.3,25.7,24.5,23.5,24.3,21.7,22.2,21.4,21.7
1950,21.1,20.2,23.1,25.6,27.3,24.8,22,23.9,22.7,20.8,21.5,20.4
1951,21.9,22.4,24,27.4,25.5,24.3,22.2,21.9,20.9,22.7,23.6,21.8
1952,23.9,23.2,26.5,25.3,25.3,22.3,22.5,21.9,19.5,21.2,22.1,19.8
1953,21.9,24.3,25.2,27,27.3,24.6,23.1,22.2,20,21.3,20.1,19.2
1954,22,21.7,26,25.7,25,24.1,21.9,22.4,20.5,20.8,21.5,20
1955,21.2,22,24.6,27.8,27.5,25.7,21.2,21.7,19.5,19.7,21.1,19
1956,17.5,22.4,25.4,27.4,23.5,22,21.3,21.8,19.6,21.8,20.3,19.5
1957,22,23,24.1,26.4,26.5,25.2,23.7,22.9,20.5,22.2,22.4,20.1
1958,17.7,20.5,24.5,26.5,23.9,23.7,21,22.3,20.6,21.1,19.9,16.9
1959,19.1,22.7,25.1,23.5,24.5,22.8,21.5,21.8,21.3,21.6,20.9,19.9
1960,21.4,21.9,25.3,26.4,27.2,26.8,22.7,22.4,20.2,23.5,22.2,19.4
1961,20.8,22.3,23.6,27.8,27.7,23.2,21.5,22.4,20.8,22.3,21,20.3
1962,20.2,23.5,25.1,23.9,25.7,25.2,23.2,22.4,20.6,22.6,21.4,18.7
1963,21,21.3,24.9,27.3,25.2,24.6,21.7,22.1,20.3,19.4,20.8,18.7
1964,18.7,23.7,24.9,27.3,25.8,23.5,22.2,22.6,20.4,20.8,20.1,18.7
1965,18.6,20.5,25.2,25,25.3,24,21.1,19.6,21.7,20.3,21.4,19.5
1966,18.2,20.8,21.7,24.4,25,23.7,21.6,21.7,21.3,20.7,20.2,20.2
1967,18.8,22.1,23.9,25,23.9,23,22,21.1,19.6,20.8,20.8,20.6
1968,20.8,20.9,23.6,24.8,24.8,23.1,20.8,21.9,20.9,21.7,21.8,20.6
1969,21.2,23.2,23.2,26.2,26.5,25.6,22.1,21.4,20.4,22.4,22.3,21.8
1970,21.2,20.7,24.4,28.8,25.3,23.3,21.7,22,20.4,23.1,20.7,21.6
1971,21.7,22.6,23.7,24.4,25.1,21.9,21,20.9,20.6,21.4,20,20.1
1972,20.1,21.4,23.5,26.2,24.4,22.6,20.6,21.4,21.4,22.1,21.5,20.1
1973,22,23,25.1,25.4,24.8,23.4,21.1,20.4,21.9,20.6,21.8,18.4
1974,20.8,22.7,23.2,24.7,25,22,20.6,21.6,20.5,19.6,20,21.2
1975,19.1,22.1,25.4,25.9,23.8,21.5,20.4,21.1,20.1,21.4,20.7,19.6
1976,20.4,20.7,24.8,24,24.1,23,19.6,20.7,21.4,20.7,20.4,19.8
1977,20.4,20.9,24.3,23.3,24.4,22.7,22.3,22.3,22.3,20.8,20.3,20.1
1978,20.7,19.5,22.8,26.1,25.9,21.9,22.1,22.1,21,19.4,20.8,20.4
1979,20.2,20.7,24.2,25,24.5,22.7,22,21.4,20.1,22.5,20.3,19
1980,19.5,20.4,24.4,23.2,23.4,23.4,22,22.1,20.9,20.6,20.6,19.3
1981,18,20.5,22.5,23.5,23.6,21,21.1,21.9,21.9,22,21,19.3
1982,20.7,21.7,23.7,25.4,23.4,24.9,21.9,23.2,21.8,20.8,21.6,19.3
1983,18.5,20.3,23.1,25.8,25.9,23.5,21,22.7,21,22.1,20.7,20.6
1984,20.6,20.1,23.2,25.8,23.3,22.4,20.6,21.4,18.9,21.9,20.9,20.4
1985,19.8,21.4,22.1,21.9,24.1,22,21.7,22.7,22.8,22.1,20.6,19.2
1986,18.4,19.5,22,23.4,22.8,20.7,20.7,22.7,22.9,21.3,20.9,20
1987,20.9,21.1,22.2,23.7,24.5,23.2,21.7,23.3,23.8,22.6,21.8,22
1988,20,22.1,21.7,24.7,26.1,23,21.5,22.3,22.1,21.9,23.3,20.3
1989,21.5,21.3,22.9,24,25.3,23.8,22.4,21.8,19.9,22.8,23.1,19.9
1990,20.5,20.8,22.5,24.1,24.8,23.1,21.4,22.1,21.4,21.2,22,21.4
1991,21,21.3,26.7,25.4,25.5,23.2,21.5,22.8,19.7,20,19.9,19.3
1992,18,18.5,24.4,23,22.7,23.8,21.9,21.8,21,21,19.4,21
1993,20.4,22.9,23.4,24.8,24.1,22.7,21.6,22.3,21.1,22,20.6,21.3
1994,21.4,21.9,25,24.1,24.9,22.6,23.5,21.7,21.7,21.9,23.1,21.4
1995,21.5,21.7,24,25.8,25.5,25,22.3,21.9,22.8,22.8,21.3,20.1
1996,21.9,23,23.4,25.5,27.3,22.5,23.5,22.3,22.5,22.3,21.7,20.7
1997,20,22.8,23.1,22.7,22.8,24.3,22.9,24.6,22.8,22.7,22.3,20.2
1998,21.3,22.8,25,28.4,27.6,27.2,24,23,21.1,20.5,22.7,21.5
1999,21.1,23,24.2,27.7,26.2,25.3,21.7,23.6,21.3,21.1,20.7,18.8
2000,20.9,22.8,24.9,27.1,25.3,23.2,22.7,22.7,22.2,22.4,21.6,19.3
2001,20.8,22.6,23.5,26.4,25.2,23.8,23,22.4,21.3,21.6,20.2,19.6
2002,21.3,21.5,25.5,27.4,26.7,24.7,22.3,22.8,21.5,22.2,20.7,19.2
2003,20.3,22.5,25.2,26.8,28.3,24.4,22.5,23.3,21.6,22,22.2,19.5
2004,20.2,22.4,25.2,26,24.8,22.9,21.9,22.8,21.5,23.7,22.5,20.5
2005,21.5,21.7,24.8,27.7,26.1,25.7,23.9,22.4,22.7,22.5,22.6,20.4
2006,22.2,24,26.2,27.4,25.8,23.6,22.7,22.6,22.5,22.8,21.5,19.9
2007,20.9,21.4,24.2,26.8,25.3,24.1,22.7,23.1,21.5,21.1,21.7,21
2008,20.8,24.6,24.3,26.7,26.3,23.3,22.3,22.7,21,21.7,21,19.6
2009,21.8,23.4,24.6,26.7,25.9,25.4,23.7,23.9,22.1,23.6,21,19.2
