1875 398.730 1876 399.450 1877 395.170 1878 390.760 1879 458.310 1880 534.430 1881 633.930 1882 626.320 1883 648.760 1884 617.490 1885 632.610 1886 727.430 1887 827.610 1888 835.220 1889 909.420 1890 1034.18 1891 1028.82 1892 1118.86 1893 1034.08 1894 982.880 1895 1082.42 1896 1036.14 1897 1100.70 1898 1225.30 1899 1441.87 1900 1401.37 1901 1597.17 1902 1664.42 1903 1692.58 1904 1710.25 1905 1897.07 1906 2040.47 1907 2080.22 1908 1930.46 1909 2201.65 1910 2289.89 1911 2310.33 1912 2444.78 1913 2503.26 1914 2402.20 1915 2490.76 1916 2862.74 1917 3084.13 1918 3275.28 1919 3500.25 1920 3571.09 1921 3339.51