line 1	
1895	42.231
1896	44.823
1897	43.443
1898	44.317
1899	41.615
1900	44.607
1901	43.359
1902	44.079
1903	43.131
1904	42.813
1905	42.545
1906	43.781
1907	43.957
1908	45.001
1909	43.747
1910	45.125
1911	45.275
1912	41.485
1913	42.997
1914	44.457
1915	43.855
1916	43.537
1917	41.063
1918	43.603
1919	44.131
1920	42.701
1921	46.649
1922	43.005
1923	43.245
1924	42.235
1925	46.139
1926	44.655
1927	45.467
1928	44.675
1929	42.281
1930	44.451
1931	45.091
1932	44.461
1933	44.071
1934	47.035
1935	44.531
1936	42.839
1937	42.455
1938	45.893
1939	45.091
1940	42.963
1941	44.897
1942	43.829
1943	44.333
1944	44.255
1945	44.927
1946	46.277
1947	43.573
1948	43.365
1949	43.543
1950	43.593
1951	43.715
1952	44.489
1953	45.751
1954	45.757
1955	43.919
1956	43.969
1957	44.319
1958	43.781
1959	44.135
1960	42.503
1961	44.569
1962	43.723
1963	43.975
1964	43.941
1965	43.391
1966	43.077
1967	44.595
1968	43.777
1969	43.343
1970	43.265
1971	43.187
1972	44.687
1973	44.089
1974	45.349
1975	43.123
1976	45.461
1977	44.549
1978	42.135
1979	41.177
1980	43.869
1981	46.123
1982	42.895
1983	44.379
1984	44.087
1985	44.273
1986	46.999
1987	46.489
1988	44.235
1989	44.581
1990	46.747
1991	46.271
1992	47.149
1993	43.593
1994	44.689
1995	45.259
1996	44.025
1997	44.463
1998	46.561
1999	46.377
2000	47.837