Year Dollars 1890 0.319000 1891 0.313000 1892 0.323000 1893 0.322000 1894 0.312000 1895 0.313000 1896 0.317000 1897 0.317000 1898 0.316000 1899 0.322000 1900 0.332000 1901 0.340000 1902 0.352000 1903 0.363000 1904 0.364000 1905 0.366000 1906 0.378000 1907 0.389000 1908 0.367000 1909 0.369000 1910 0.386000 1911 0.396000 1912 0.399000 1913 0.406000 1914 0.413000 1915 0.413000 1916 0.455000 1917 0.504000 1918 0.663000 1919 0.747000 1920 0.875000 1921 0.855000 1922 0.797000 1923 0.840000 1924 0.887000 1925 0.921000 1926 0.961000 1927 0.953000 1928 0.984000