Month Dollars Per Ton Of 2240 Lbs. 1842-05-01 27.0000 1842-06-01 27.0000 1842-07-01 26.3300 1842-08-01 24.5000 1842-09-01 25.1200 1842-10-01 25.0000 1842-11-01 25.0000 1842-12-01 25.0000 1844-01-01 24.0000 1844-02-01 24.0000 1844-03-01 24.0000 1844-04-01 24.0000 1844-05-01 24.0000 1844-06-01 26.1700 1844-07-01 26.5000 1844-08-01 26.5000 1844-09-01 27.2500 1844-10-01 28.0000 1844-11-01 27.5000 1844-12-01 26.7500 1845-01-01 26.7500 1845-02-01 26.5000 1845-03-01 27.7500 1845-04-01 33.1200 1845-05-01 34.1200 1845-06-01 33.0000 1845-07-01 31.0000 1845-08-01 28.3300 1845-09-01 27.0000 1845-10-01 26.8800 1845-11-01 28.3300 1845-12-01 28.0000 1846-01-01 28.0000 1846-02-01 28.0000 1846-03-01 28.2500 1846-04-01 28.0000 1846-05-01 28.5000 1846-06-01 28.0000 1846-07-01 29.0000 1846-08-01 26.1200 1846-09-01 27.2500 1846-10-01 27.0000 1846-11-01 28.5000 1846-12-01 28.1200 1847-01-01 28.5000 1847-02-01 28.5000 1847-03-01 28.6200 1847-04-01 29.0000 1847-05-01 29.0000 1847-06-01 28.6200 1847-07-01 28.0000 1847-08-01 28.5000 1847-09-01 30.5000 1847-10-01 33.7500 1847-11-01 35.7500 1847-12-01 33.7500 1848-01-01 31.0000 1848-02-01 28.5000 1848-03-01 27.2500 1848-04-01 26.6200 1848-05-01 26.5000 1848-06-01 26.5000 1848-07-01 25.7500 1848-08-01 25.3800 1848-09-01 25.5000 1848-10-01 25.0000 1848-11-01 25.0000 1848-12-01 24.8800 1849-01-01 25.0000 1849-02-01 24.5000 1849-03-01 24.7500 1849-04-01 24.0000 1849-05-01 23.5000 1849-06-01 23.0000 1849-07-01 22.7500 1849-08-01 22.5000 1849-09-01 21.1200 1849-10-01 21.5000 1849-11-01 20.0000 1849-12-01 21.0000 1850-01-01 21.0000 1850-02-01 21.0000 1850-03-01 20.6700 1850-04-01 20.8800 1850-05-01 20.8800 1850-06-01 20.1700 1850-07-01 20.0000 1850-08-01 20.6700 1850-09-01 21.0000 1850-10-01 21.0000 1850-11-01 21.0000 1850-12-01 21.7500 1851-01-01 21.5000 1851-02-01 22.0000 1851-03-01 22.0000 1851-04-01 22.0000 1851-05-01 21.5000 1851-06-01 21.5000 1851-07-01 21.0000 1851-08-01 21.0000 1851-09-01 21.0000 1851-10-01 21.0000 1851-11-01 21.0000 1851-12-01 21.0000 1852-01-01 21.2500 1852-02-01 21.2500 1852-03-01 20.7500 1852-04-01 20.3800 1852-05-01 20.2500 1852-06-01 20.5000 1852-07-01 20.2500 1852-08-01 21.2500 1852-09-01 23.2500 1852-10-01 26.5000 1852-11-01 27.7500 1852-12-01 28.2500 1853-01-01 32.7500 1853-02-01 36.8800 1853-03-01 35.6200 1853-04-01 35.8800 1853-05-01 35.8800 1853-06-01 36.0000 1853-07-01 36.0000 1853-08-01 36.0000 1853-09-01 36.2500 1853-10-01 37.3300 1853-11-01 37.6200 1853-12-01 36.7500 1854-01-01 37.0000 1854-02-01 36.2500 1854-03-01 37.0000 1854-04-01 38.0000 1854-05-01 38.0000 1854-06-01 38.0000 1854-07-01 38.0000 1854-08-01 38.0000 1854-09-01 37.7500 1854-10-01 36.5000 1854-11-01 35.5000 1854-12-01 32.8800 1855-01-01 31.1200 1855-02-01 29.5000 1855-03-01 27.5000 1855-04-01 26.7500 1855-05-01 26.5000 1855-06-01 26.1200 1855-07-01 26.1200 1855-08-01 26.5000 1855-09-01 28.0000 1855-10-01 28.6200 1855-11-01 28.5000 1855-12-01 27.7500 1856-01-01 27.5000 1856-02-01 27.5000 1856-03-01 27.6700 1856-04-01 28.0000 1856-05-01 28.0000 1856-06-01 27.6200 1856-07-01 27.0000 1856-08-01 27.0000 1856-09-01 27.0000 1856-10-01 26.8800 1856-11-01 26.0000 1856-12-01 26.0000 1857-01-01 26.2500 1857-02-01 26.5000 1857-03-01 26.6200 1857-04-01 27.7500 1857-05-01 27.8800 1857-06-01 27.7500 1857-07-01 27.2500 1857-08-01 26.7500 1857-09-01 26.3800 1857-10-01 25.7500 1857-11-01 23.5000 1857-12-01 23.7500 1858-01-01 23.5000 1858-02-01 22.5000 1858-03-01 22.5000 1858-04-01 22.5000 1858-05-01 22.5000 1858-06-01 22.1200 1858-07-01 21.3800 1858-08-01 21.5000 1858-09-01 22.0000 1858-10-01 21.5000 1858-11-01 21.7500 1858-12-01 22.5000 1859-01-01 22.7500 1859-02-01 23.6200 1859-03-01 24.5000 1859-04-01 23.8800 1859-05-01 23.5000 1859-06-01 23.1200 1859-07-01 23.0000 1859-08-01 23.1200 1859-09-01 22.8800 1859-10-01 23.2500 1859-11-01 23.2500 1859-12-01 23.1200 1860-01-01 23.0000 1860-02-01 23.0000 1860-03-01 23.3700 1860-04-01 22.3700 1860-05-01 22.7500 1860-06-01 22.7500 1860-07-01 22.7500 1860-08-01 22.5000 1860-09-01 22.2500 1860-10-01 22.3700 1860-11-01 22.7500 1860-12-01 22.5000 1861-01-01 22.1200 1861-02-01 21.7500 1861-03-01 21.2500 1861-04-01 21.8700 1861-05-01 21.1200 1861-06-01 20.5000 1861-07-01 19.8700 1861-08-01 18.7500 1861-09-01 18.7500 1861-10-01 18.6200 1861-11-01 18.8700 1861-12-01 19.6200 1862-01-01 20.0000 1862-02-01 20.7500 1862-03-01 20.7500 1862-04-01 21.5000 1862-05-01 21.5000 1862-06-01 22.7500 1862-07-01 24.0000 1862-08-01 24.3700 1862-09-01 24.5000 1862-10-01 25.2500 1862-11-01 30.5000 1862-12-01 31.1200 1863-01-01 32.0000 1863-02-01 33.2500 1863-03-01 35.5000 1863-04-01 36.0000 1863-05-01 34.7500 1863-06-01 33.5000 1863-07-01 32.7500 1863-08-01 31.7500 1863-09-01 33.0000 1863-10-01 35.7500 1863-11-01 41.1200 1863-12-01 43.5000 1864-01-01 43.1700 1864-02-01 48.6200 1864-03-01 50.1200 1864-04-01 54.5000 1864-05-01 57.2500 1864-06-01 57.6200 1864-07-01 69.1200 1864-08-01 73.6200 1864-09-01 72.2500 1864-10-01 63.7500 1864-11-01 61.5000 1864-12-01 59.1200 1865-01-01 58.1200 1865-02-01 53.1200 1865-03-01 50.3700 1865-04-01 45.5000 1865-05-01 39.1200 1865-06-01 35.0000 1865-07-01 35.6700 1865-08-01 40.1200 1865-09-01 44.3300 1865-10-01 49.8700 1865-11-01 51.0000 1865-12-01 50.7500 1866-01-01 50.3700 1866-02-01 49.0000 1866-03-01 46.1200 1866-04-01 41.7500 1866-05-01 41.3700 1866-06-01 43.8700 1866-07-01 46.5000 1866-08-01 47.2500 1866-09-01 48.1200 1866-10-01 48.7500 1866-11-01 49.5000 1866-12-01 49.5000 1867-01-01 48.7500 1867-02-01 46.5000 1867-03-01 44.7500 1867-04-01 41.0000 1867-05-01 42.7500 1867-06-01 43.0000 1867-07-01 43.3300 1867-08-01 44.0000 1867-09-01 44.5000 1867-10-01 44.5000 1867-11-01 43.7500 1867-12-01 42.1200 1868-01-01 38.6700 1868-02-01 36.7500 1868-03-01 37.8700 1868-04-01 38.3300 1868-05-01 37.0000 1868-06-01 37.0000 1868-07-01 38.1700 1868-08-01 39.5000 1868-09-01 40.1700 1868-10-01 41.3700 1868-11-01 42.8700 1868-12-01 43.2500 1869-01-01 42.0000 1869-02-01 40.2500 1869-03-01 41.5000 1869-04-01 40.0000 1869-05-01 39.5000 1869-06-01 40.8700 1869-07-01 41.6200 1869-08-01 41.1200 1869-09-01 40.7500 1869-10-01 40.5000 1869-11-01 39.7500 1869-12-01 39.5000 1870-01-01 36.2500 1870-02-01 34.5000 1870-03-01 34.5000 1870-04-01 33.2500 1870-05-01 33.2500 1870-06-01 32.5000 1870-07-01 32.7500 1870-08-01 33.5000 1870-09-01 33.2500 1870-10-01 32.2500 1870-11-01 31.5000 1870-12-01 31.2500 1871-01-01 30.5000 1871-02-01 30.8700 1871-03-01 34.2500 1871-04-01 35.3700 1871-05-01 35.5000 1871-06-01 35.0000 1871-07-01 35.7500 1871-08-01 36.0000 1871-09-01 36.5000 1871-10-01 36.6700 1871-11-01 37.2500 1871-12-01 37.2500 1872-01-01 37.0000 1872-02-01 40.7500 1872-03-01 47.0000 1872-04-01 49.5000 1872-05-01 49.5000 1872-06-01 53.3700 1872-07-01 51.3300 1872-08-01 52.7500 1872-09-01 53.8700 1872-10-01 53.3300 1872-11-01 51.2500 1872-12-01 47.6200 1873-01-01 45.1700 1873-02-01 48.0000 1873-03-01 48.3700 1873-04-01 47.7500 1873-05-01 46.0000 1873-06-01 45.0000 1873-07-01 43.7500 1873-08-01 43.5000 1873-09-01 42.5000 1873-10-01 38.0000 1873-11-01 33.0000 1873-12-01 32.5000 1874-01-01 32.0000 1874-02-01 32.0000 1874-03-01 32.0000 1874-04-01 32.0000 1874-05-01 31.5000 1874-06-01 31.5000 1874-07-01 31.5000 1874-08-01 31.0000 1874-09-01 29.5000 1874-10-01 29.0000 1874-11-01 26.2500 1874-12-01 24.0000 1875-01-01 25.6700 1875-02-01 26.5000 1875-03-01 27.0000 1875-04-01 27.0000 1875-05-01 26.0000 1875-06-01 26.0000 1875-07-01 26.0000 1875-08-01 26.0000 1875-09-01 25.0000 1875-10-01 24.0000 1875-11-01 23.7500 1875-12-01 23.5000 1876-01-01 23.2500 1876-02-01 23.0000 1876-03-01 23.0000 1876-04-01 22.7500 1876-05-01 22.0000 1876-06-01 22.0000 1876-07-01 22.0000 1876-08-01 22.0000 1876-09-01 21.7500 1876-10-01 21.7500 1876-11-01 21.5000 1876-12-01 21.2500 1877-01-01 20.7500 1877-02-01 20.0000 1877-03-01 20.0000 1877-04-01 19.5000 1877-05-01 19.0000 1877-06-01 18.7500 1877-07-01 18.2500 1877-08-01 18.0000 1877-09-01 18.2500 1877-10-01 18.5000 1877-11-01 18.0000 1877-12-01 18.0000 1878-01-01 18.5000 1878-02-01 18.5000 1878-03-01 18.5000 1878-04-01 18.5000 1878-05-01 18.0000 1878-06-01 17.2500 1878-07-01 17.2500 1878-08-01 17.5000 1878-09-01 17.5000 1878-10-01 17.0000 1878-11-01 16.5000 1878-12-01 17.0000 1879-01-01 17.2500 1879-02-01 17.5000 1879-03-01 17.8700 1879-04-01 18.0000 1879-05-01 18.5000 1879-06-01 18.7500 1879-07-01 19.2500 1879-08-01 20.7500 1879-09-01 24.2500 1879-10-01 30.0000 1879-11-01 28.0000 1879-12-01 30.5000 1880-01-01 40.0000 1880-02-01 41.0000 1880-03-01 37.5000 1880-04-01 31.0000 1880-05-01 25.0000 1880-06-01 23.0000 1880-07-01 23.5000 1880-08-01 25.0000 1880-09-01 23.2500 1880-10-01 23.0000 1880-11-01 24.5000 1880-12-01 25.0000 1881-01-01 25.0000 1881-02-01 25.5000 1881-03-01 26.0000 1881-04-01 25.0000 1881-05-01 25.0000 1881-06-01 24.0000 1881-07-01 24.5000 1881-08-01 24.5000 1881-09-01 25.2500 1881-10-01 25.5000 1881-11-01 25.7500 1881-12-01 26.0000 1882-01-01 26.0000 1882-02-01 26.0000 1882-03-01 25.7500 1882-04-01 25.5000 1882-05-01 25.5000 1882-06-01 25.5000 1882-07-01 25.5000 1882-08-01 25.5000 1882-09-01 26.0000 1882-10-01 26.2500 1882-11-01 26.0000 1882-12-01 25.7500 1883-01-01 25.0000 1883-02-01 24.5000 1883-03-01 24.0000 1883-04-01 23.5000 1883-05-01 22.0000 1883-06-01 21.0000 1883-07-01 21.5000 1883-08-01 22.0000 1883-09-01 22.0000 1883-10-01 21.5000 1883-11-01 21.0000 1883-12-01 21.0000 1884-01-01 20.5000 1884-02-01 20.5000 1884-03-01 20.5000 1884-04-01 20.0000 1884-05-01 20.0000 1884-06-01 20.0000 1884-07-01 20.0000 1884-08-01 19.5000 1884-09-01 19.5000 1884-10-01 19.5000 1884-11-01 19.2500 1884-12-01 18.5000 1885-01-01 18.0000 1885-02-01 18.0000 1885-03-01 18.0000 1885-04-01 18.0000 1885-05-01 17.8700 1885-06-01 17.7500 1885-07-01 17.7500 1885-08-01 17.7500 1885-09-01 18.0000 1885-10-01 18.2500 1885-11-01 18.2500 1885-12-01 18.2500 1886-01-01 18.5000 1886-02-01 18.5000 1886-03-01 18.7500 1886-04-01 18.5000 1886-05-01 18.5000 1886-06-01 18.2500 1886-07-01 18.2500 1886-08-01 18.2500 1886-09-01 18.5000 1886-10-01 19.0000 1886-11-01 19.5000 1886-12-01 20.0000 1887-01-01 21.5000 1887-02-01 21.5000 1887-03-01 21.0000 1887-04-01 20.7500 1887-05-01 20.8500 1887-06-01 21.0000 1887-07-01 21.0000 1887-08-01 21.0000 1887-09-01 21.0000 1887-10-01 20.5000 1887-11-01 20.5000 1887-12-01 20.5000 1888-01-01 21.0000 1888-02-01 20.7500 1888-03-01 20.5000 1888-04-01 19.7500 1888-05-01 18.5000 1888-06-01 18.0000 1888-07-01 18.0000 1888-08-01 18.0000 1888-09-01 18.0000 1888-10-01 18.0000 1888-11-01 18.0000 1888-12-01 18.0000 1889-01-01 18.0000 1889-02-01 18.0000 1889-03-01 18.0000 1889-04-01 17.3500 1889-05-01 17.0000 1889-06-01 17.2500 1889-07-01 17.2500 1889-08-01 17.5000 1889-09-01 17.5000 1889-10-01 17.5000 1889-11-01 18.5000 1889-12-01 19.2500 1890-01-01 19.9000 1890-02-01 19.5000 1890-03-01 19.2500 1890-04-01 18.2500 1890-05-01 18.0000 1890-06-01 18.0000 1890-07-01 18.0000 1890-08-01 18.0000 1890-09-01 18.0000 1890-10-01 18.0000 1890-11-01 18.0000 1890-12-01 18.0000 1891-01-01 17.5000 1891-02-01 17.5000 1891-03-01 17.5000 1891-04-01 17.5000 1891-05-01 17.5000 1891-06-01 17.5000 1891-07-01 17.5000 1891-08-01 17.5000 1891-09-01 17.5000 1891-10-01 17.7500 1891-11-01 17.5000 1891-12-01 17.5000 1892-01-01 17.5000 1892-02-01 17.0000 1892-03-01 16.5000 1892-04-01 16.0000 1892-05-01 15.9500 1892-06-01 15.6900 1892-07-01 15.0600 1892-08-01 15.0000 1892-09-01 15.0000 1892-10-01 15.0000 1892-11-01 15.1700 1892-12-01 15.1200 1893-01-01 14.8000 1893-02-01 14.7500 1893-03-01 14.6900 1893-04-01 14.5800 1893-05-01 14.8500 1893-06-01 15.0000 1893-07-01 15.0000 1893-08-01 14.5000 1893-09-01 14.3300 1893-10-01 14.2000 1893-11-01 13.7500 1893-12-01 13.7500 1894-01-01 13.3700 1894-02-01 13.0000 1894-03-01 13.0000 1894-04-01 12.6000 1894-05-01 12.5000 1894-06-01 12.5000 1894-07-01 12.5000 1894-08-01 12.5000 1894-09-01 12.5000 1894-10-01 12.5000 1894-11-01 12.5000 1894-12-01 12.5000 1895-01-01 12.0800 1895-02-01 12.0000 1895-03-01 12.0600 1895-04-01 12.0000 1895-05-01 12.0600 1895-06-01 12.5000 1895-07-01 13.8000 1895-08-01 13.7500 1895-09-01 14.2000 1895-10-01 14.5000 1895-11-01 14.4400 1895-12-01 13.8500 1896-01-01 13.5600 1896-02-01 13.5000 1896-03-01 13.4500 1896-04-01 13.2500 1896-05-01 12.8300 1896-06-01 12.7500 1896-07-01 12.7500 1896-08-01 12.7500 1896-09-01 12.5000 1896-10-01 12.5600 1896-11-01 12.8100 1896-12-01 12.7500 1897-01-01 12.7500 1897-02-01 12.7500 1897-03-01 12.6000 1897-04-01 12.1200 1897-05-01 11.8700 1897-06-01 11.7500 1897-07-01 11.7500 1897-08-01 11.7500 1897-09-01 11.8700 1897-10-01 12.0000 1897-11-01 12.0000 1897-12-01 12.0000 1898-01-01 12.0000 1898-02-01 11.8700 1898-03-01 11.7500 1898-04-01 11.7500 1898-05-01 11.6500 1898-06-01 11.4400 1898-07-01 11.2500 1898-08-01 11.3000 1898-09-01 11.5000 1898-10-01 11.7000 1898-11-01 11.7500 1898-12-01 11.9700 1899-01-01 12.1200 1899-02-01 13.2500 1899-03-01 16.0000 1899-04-01 16.5000 1899-05-01 16.6000 1899-06-01 18.6200 1899-07-01 20.3700 1899-08-01 21.7000 1899-09-01 23.5000 1899-10-01 23.7000 1899-11-01 25.0000 1899-12-01 25.0000 1900-01-01 25.0000 1900-02-01 24.5000 1900-03-01 23.6200 1900-04-01 23.1900 1900-05-01 22.6000 1900-06-01 20.0000 1900-07-01 17.7500 1900-08-01 17.2000 1900-09-01 17.0000 1900-10-01 16.0000 1900-11-01 16.4000 1900-12-01 16.5000 1901-01-01 16.0500 1901-02-01 16.0000 1901-03-01 16.0000 1901-04-01 16.0000 1901-05-01 16.0000 1901-06-01 16.0000 1901-07-01 15.8700 1901-08-01 15.5000 1901-09-01 15.5000 1901-10-01 15.5000 1901-11-01 15.7500 1901-12-01 16.2500 1902-01-01 17.5500 1902-02-01 18.3700 1902-03-01 19.4400 1902-04-01 20.3700 1902-05-01 21.0000 1902-06-01 22.8700 1902-07-01 24.2000 1902-08-01 24.5000 1902-09-01 24.5000 1902-10-01 24.4500 1902-11-01 24.8700 1902-12-01 24.2000 1903-01-01 24.0000 1903-02-01 23.7500 1903-03-01 23.5000 1903-04-01 22.7000 1903-05-01 21.3700 1903-06-01 20.6200 1903-07-01 19.0000 1903-08-01 18.0000 1903-09-01 17.5000 1903-10-01 16.7000 1903-11-01 16.0000 1903-12-01 15.8500 1904-01-01 15.5000 1904-02-01 15.5000 1904-03-01 15.4500 1904-04-01 15.7500 1904-05-01 15.4000 1904-06-01 15.1900 1904-07-01 14.9400 1904-08-01 15.0000 1904-09-01 15.0000 1904-10-01 15.1200 1904-11-01 16.4000 1904-12-01 17.6200 1905-01-01 17.7500 1905-02-01 17.7500 1905-03-01 18.0000 1905-04-01 18.2500 1905-05-01 18.0600 1905-06-01 17.6000 1905-07-01 17.1900 1905-08-01 17.2500 1905-09-01 17.2500 1905-10-01 17.8700 1905-11-01 18.6500 1905-12-01 19.0000 1906-01-01 19.0000 1906-02-01 19.0000 1906-03-01 19.0000 1906-04-01 19.1200 1906-05-01 19.2500 1906-06-01 19.2500 1906-07-01 19.2500 1906-08-01 19.8000 1906-09-01 22.6200 1906-10-01 24.0000 1906-11-01 25.0000 1906-12-01 26.5000 1907-01-01 27.5000 1907-02-01 27.3700 1907-03-01 26.8700 1907-04-01 26.5600 1907-05-01 26.6000 1907-06-01 25.7500 1907-07-01 23.6200 1907-08-01 22.5000 1907-09-01 21.1900 1907-10-01 20.4000 1907-11-01 19.4400 1907-12-01 18.9400 1908-01-01 18.7000 1908-02-01 18.7500 1908-03-01 18.6200 1908-04-01 18.1500 1908-05-01 17.4400 1908-06-01 17.1200 1908-07-01 17.0000 1908-08-01 17.0000 1908-09-01 17.1200 1908-10-01 17.2500 1908-11-01 17.5000 1908-12-01 17.7500 1909-01-01 17.7500 1909-02-01 17.5000 1909-03-01 16.8700 1909-04-01 16.7000 1909-05-01 16.5600 1909-06-01 16.9400 1909-07-01 17.0500 1909-08-01 17.5600 1909-09-01 18.5500 1909-10-01 19.1900 1909-11-01 19.5000 1909-12-01 19.5000 1910-01-01 19.5000 1910-02-01 19.1900 1910-03-01 18.5000 1910-04-01 18.2500 1910-05-01 17.5000 1910-06-01 17.1500 1910-07-01 16.7500 1910-08-01 16.5000 1910-09-01 16.5000 1910-10-01 16.3100 1910-11-01 16.1900 1910-12-01 16.0000 1911-01-01 16.0000 1911-02-01 16.0000 1911-03-01 16.0000 1911-04-01 16.0000 1911-05-01 16.0000 1911-06-01 15.7500 1911-07-01 15.5000 1911-08-01 15.5000 1911-09-01 15.5000 1911-10-01 15.5000 1911-11-01 15.4500 1911-12-01 15.3500 1912-01-01 15.3500 1912-02-01 15.3500 1912-03-01 15.4200 1912-04-01 15.5000 1912-05-01 15.7200 1912-06-01 15.8100 1912-07-01 16.1900 1912-08-01 16.3500 1912-09-01 17.0900 1912-10-01 18.1000 1912-11-01 18.8100 1912-12-01 19.0000 1913-01-01 19.0000 1913-02-01 18.7500 1913-03-01 18.2700 1913-04-01 18.0000 1913-05-01 17.3000 1913-06-01 16.6900 1913-07-01 16.1000 1913-08-01 16.1000 1913-09-01 16.3400 1913-10-01 16.4500 1913-11-01 16.0600 1913-12-01 15.7500 1914-01-01 15.2200 1914-02-01 15.4400 1914-03-01 15.5000 1914-04-01 15.5000 1914-05-01 15.3100 1914-06-01 15.2500 1914-07-01 15.2500 1914-08-01 15.2500 1914-09-01 15.2500