1895	68.673
1896	70.333
1897	68.733
1898	69.843
1899	69.213
1900	70.703
1901	69.143
1902	68.733
1903	66.463
1904	67.903
1905	68.743
1906	68.013
1907	66.473
1908	67.603
1909	69.623
1910	68.953
1911	71.423
1912	67.413
1913	69.043
1914	70.123
1915	66.823
1916	67.063
1917	67.713
1918	71.813
1919	70.053
1920	68.073
1921	71.003
1922	70.953
1923	68.763
1924	69.253
1925	70.563
1926	68.943
1927	67.893
1928	66.583
1929	68.203
1930	69.183
1931	71.493
1932	70.023
1933	72.383
1934	71.513
1935	68.403
1936	71.383
1937	69.593
1938	69.573
1939	69.613
1940	70.323
1941	68.723
1942	68.743
1943	69.723
1944	69.173
1945	66.653
1946	69.183
1947	67.543
1948	69.583
1949	70.073
1950	68.763
1951	67.363
1952	71.563
1953	70.933
1954	69.623
1955	67.273
1956	71.103
1957	69.533
1958	68.753
1959	70.743
1960	69.853
1961	70.283
1962	68.713
1963	69.513
1964	68.803
1965	67.673
1966	68.773
1967	68.403
1968	69.323
1969	67.673
1970	69.613
1971	70.363
1972	69.133
1973	69.823
1974	69.313
1975	68.363
1976	68.663
1977	71.183
1978	69.833
1979	68.743
1980	69.573
1981	70.693
1982	67.163
1983	68.033
1984	69.543
1985	68.963
1986	71.363
1987	71.113
1988	71.753
1989	69.013
1990	70.993
1991	69.983
1992	68.313
1993	68.213
1994	71.773
1995	68.543
1996	70.613
1997	69.243
1998	69.013
1999	69.183
2000	69.983