X1	x2
1895	49.4
1896	49.04
1897	49.8
1898	49.49
1899	49.02
1900	50.44
1901	49.44
1902	49.13
1903	49.96
1904	51.31
1905	51
1906	52.04
1907	50.68
1908	49.94
1909	48.96
1910	50.6
1911	49.77
1912	50.7
1913	49.68
1914	51.27
1915	51.39
1916	47.92
1917	50.4
1918	51.09
1919	49.04
1920	49.33
1921	50.47
1922	48.72
1923	50.79
1924	50.15
1925	51.78
1926	52.52
1927	50.24
1928	50.84
1929	49.97
1930	50.35
1931	52.11
1932	51.43
1933	50.75
1934	54.22
1935	50.8
1936	51.29
1937	50.77
1938	51.95
1939	52.44
1940	53.3
1941	53.17
1942	51.41
1943	50.85
1944	51.32
1945	51.26
1946	51.05
1947	52.19
1948	49.7
1949	50.45
1950	50.08
1951	51.26
1952	51.01
1953	51.96
1954	49.83
1955	48.52
1956	50.16
1957	50.72
1958	53.87
1959	50.72
1960	50.19
1961	51.88
1962	50.79
1963	50.76
1964	48.84
1965	51.77
1966	51.2
1967	52.05
1968	50.98
1969	50.64
1970	50.62
1971	50.01
1972	50.15
1973	50.32
1974	50.17
1975	49.14
1976	49.05
1977	49.75
1978	49.86
1979	50.12
1980	50.04
1981	51.17
1982	49.93
1983	50.82
1984	50.1
1985	48.34
1986	51.96
1987	52.1
1988	51.4
1989	51.08
1990	51.7
1991	51.4
1992	53.68
1993	50.92
1994	52.26