1888 2.34900 1889 2.16500 1890 2.16700 1891 2.14200 1892 2.12600 1893 2.10800 1894 1.98600 1895 2.04000 1896 2.01900 1897 2.02200 1898 1.97300 1899 1.97800 1900 2.00300 1901 2.01300 1902 1.98600 1903 2.00600 1904 2.00600 1905 1.96200 1906 2.00300 1907 2.01400 1908 1.93700 1909 1.92800 1910 1.93800 1911 1.97400 1912 1.98700 1913 2.00800 1914 1.99000 1915 1.99100 1916 2.01000