1895	72.231
1896	72.951
1897	71.711
1898	73.301
1899	72.381
1900	73.571
1901	73.721
1902	72.021
1903	71.561
1904	71.211
1905	72.861
1906	72.471
1907	71.361
1908	71.171
1909	73.551
1910	71.661
1911	71.461
1912	70.721
1913	74.041
1914	72.301
1915	70.691
1916	72.441
1917	71.561
1918	73.141
1919	72.791
1920	71.231
1921	72.561
1922	73.351
1923	71.681
1924	72.701
1925	72.021
1926	72.921
1927	69.951
1928	72.371
1929	73.261
1930	73.561
1931	72.661
1932	73.211
1933	72.531
1934	74.241
1935	73.631
1936	75.301
1937	75.331
1938	74.421
1939	73.271
1940	72.761
1941	72.781
1942	72.481
1943	74.211
1944	72.791
1945	72.851
1946	71.791
1947	74.801
1948	72.761
1949	72.781
1950	70.681
1951	72.511
1952	73.451
1953	72.731
1954	72.831
1955	74.501
1956	72.321
1957	72.371
1958	73.931
1959	73.841
1960	72.811
1961	73.321
1962	72.741
1963	72.651
1964	71.331
1965	71.701
1966	71.451
1967	71.881
1968	71.321
1969	73.821
1970	74.031
1971	72.731
1972	72.421
1973	73.241
1974	70.951
1975	72.221
1976	71.421
1977	72.461
1978	72.471
1979	71.671
1980	73.501
1981	72.741
1982	72.761
1983	75.811
1984	73.851
1985	71.671
1986	72.351
1987	72.501
1988	74.341
1989	71.991
1990	72.941
1991	73.691
1992	70.441
1993	72.671
1994	72.861
1995	74.951
1996	72.991
1997	72.401
1998	74.571
1999	73.671
2000	74.871