Month Percent 1876-01-01 74.2000 1876-02-01 82.8000 1876-03-01 78.6000 1876-04-01 83.2000 1876-05-01 92.0000 1876-06-01 76.0000 1876-07-01 82.9000 1876-08-01 87.4000 1876-09-01 73.2000 1876-10-01 72.2000 1876-11-01 76.3000 1876-12-01 71.2000 1877-01-01 81.8000 1877-02-01 85.3000 1877-03-01 82.8000 1877-04-01 82.7000 1877-05-01 87.8000 1877-06-01 78.4000 1877-07-01 84.5000 1877-08-01 81.3000 1877-09-01 69.9000 1877-10-01 92.2000 1877-11-01 79.8000 1877-12-01 69.0000 1878-01-01 80.4000 1878-02-01 90.6000 1878-03-01 82.9000 1878-04-01 83.6000 1878-05-01 91.9000 1878-06-01 80.4000 1878-07-01 85.3000 1878-08-01 86.0000 1878-09-01 74.7000 1878-10-01 76.3000 1878-11-01 87.0000 1878-12-01 76.5000 1879-01-01 92.4000 1879-02-01 101.500 1879-03-01 90.5000 1879-04-01 88.3000 1879-05-01 91.5000 1879-06-01 79.8000 1879-07-01 87.2000 1879-08-01 88.0000 1879-09-01 72.4000 1879-10-01 72.6000 1879-11-01 81.8000 1879-12-01 73.1000 1880-01-01 84.0000 1880-02-01 86.3000 1880-03-01 78.3000 1880-04-01 80.2000 1880-05-01 89.0000 1880-06-01 76.7000 1880-07-01 82.7000 1880-08-01 79.9000 1880-09-01 73.3000 1880-10-01 77.2000 1880-11-01 82.5000 1880-12-01 69.4000 1881-01-01 84.8000 1881-02-01 92.6000 1881-03-01 80.1000 1881-04-01 79.9000 1881-05-01 87.0000 1881-06-01 73.9000 1881-07-01 83.4000 1881-08-01 80.8000 1881-09-01 65.8000 1881-10-01 68.5000 1881-11-01 75.3000 1881-12-01 63.5000 1882-01-01 74.8000 1882-02-01 86.3000 1882-03-01 76.4000 1882-04-01 79.3000 1882-05-01 87.2000 1882-06-01 72.7000 1882-07-01 78.0000 1882-08-01 78.2000 1882-09-01 63.7000 1882-10-01 65.1000 1882-11-01 75.8000 1882-12-01 69.5000 1883-01-01 87.4000 1883-02-01 95.1000 1883-03-01 81.8000 1883-04-01 83.8000 1883-05-01 95.5000 1883-06-01 77.9000 1883-07-01 86.2000 1883-08-01 86.4000 1883-09-01 70.6000 1883-10-01 74.0000 1883-11-01 81.2000 1883-12-01 69.6000 1884-01-01 87.4000 1884-02-01 95.5000 1884-03-01 80.8000 1884-04-01 85.0000 1884-05-01 94.4000 1884-06-01 77.4000 1884-07-01 87.4000 1884-08-01 87.2000 1884-09-01 69.2000 1884-10-01 71.0000 1884-11-01 77.0000 1884-12-01 62.3000 1885-01-01 79.2000 1885-02-01 87.7000 1885-03-01 74.7000 1885-04-01 80.2000 1885-05-01 92.9000 1885-06-01 76.2000 1885-07-01 85.7000 1885-08-01 86.7000 1885-09-01 70.4000 1885-10-01 79.5000 1885-11-01 89.1000 1885-12-01 74.4000 1886-01-01 94.4000 1886-02-01 102.200 1886-03-01 84.9000 1886-04-01 88.6000 1886-05-01 96.0000 1886-06-01 79.4000 1886-07-01 92.8000 1886-08-01 92.4000 1886-09-01 72.4000 1886-10-01 76.7000 1886-11-01 82.3000 1886-12-01 67.9000 1887-01-01 86.2000 1887-02-01 95.9000 1887-03-01 82.9000 1887-04-01 92.1000 1887-05-01 102.400 1887-06-01 85.8000 1887-07-01 98.7000 1887-08-01 100.700 1887-09-01 79.7000 1887-10-01 84.7000 1887-11-01 92.0000 1887-12-01 77.6000 1888-01-01 95.8000 1888-02-01 104.500 1888-03-01 88.9000 1888-04-01 100.300 1888-05-01 114.900 1888-06-01 95.3000 1888-07-01 106.900 1888-08-01 104.900 1888-09-01 84.2000 1888-10-01 86.9000 1888-11-01 91.1000 1888-12-01 80.0000 1889-01-01 97.5000 1889-02-01 106.100 1889-03-01 91.2000 1889-04-01 96.3000 1889-05-01 102.700 1889-06-01 84.6000 1889-07-01 91.9000 1889-08-01 88.5000 1889-09-01 68.5000 1889-10-01 73.3000 1889-11-01 79.8000 1889-12-01 64.7000 1890-01-01 80.7000 1890-02-01 91.9000 1890-03-01 78.2000 1890-04-01 86.0000 1890-05-01 95.1000 1890-06-01 80.4000 1890-07-01 88.2000 1890-08-01 83.8000 1890-09-01 65.5000 1890-10-01 69.9000 1890-11-01 80.7000 1890-12-01 70.3000 1891-01-01 89.0000 1891-02-01 96.9000 1891-03-01 82.2000 1891-04-01 91.1000 1891-05-01 100.300 1891-06-01 85.1000 1891-07-01 98.0000 1891-08-01 101.200 1891-09-01 83.8000 1891-10-01 89.3000 1891-11-01 96.1000 1891-12-01 81.9000 1892-01-01 99.2000 1892-02-01 112.400 1892-03-01 94.2000 1892-04-01 97.7000 1892-05-01 110.600 1892-06-01 92.4000 1892-07-01 102.900 1892-08-01 102.200 1892-09-01 81.6000 1892-10-01 82.4000 1892-11-01 88.8000 1892-12-01 75.1000 1893-01-01 93.4000 1893-02-01 102.300 1893-03-01 83.4000 1893-04-01 87.6000 1893-05-01 96.4000 1893-06-01 76.2000 1893-07-01 84.3000 1893-08-01 87.3000 1893-09-01 69.1000 1893-10-01 77.1000 1893-11-01 88.5000 1893-12-01 73.6000 1894-01-01 94.8000 1894-02-01 103.400 1894-03-01 81.6000 1894-04-01 89.6000 1894-05-01 103.400 1894-06-01 83.4000 1894-07-01 95.5000 1894-08-01 100.500 1894-09-01 83.7000 1894-10-01 92.2000 1894-11-01 103.100 1894-12-01 85.3000 1895-01-01 105.500 1895-02-01 114.000 1895-03-01 91.9000 1895-04-01 100.000 1895-05-01 104.100 1895-06-01 84.3000 1895-07-01 95.4000 1895-08-01 94.6000 1895-09-01 72.8000 1895-10-01 70.4000 1895-11-01 80.4000 1895-12-01 65.8000 1896-01-01 88.5000 1896-02-01 95.9000 1896-03-01 72.1000 1896-04-01 80.1000 1896-05-01 80.0000 1896-06-01 70.7000 1896-07-01 85.5000 1896-08-01 88.6000 1896-09-01 86.5000 1896-10-01 85.2000 1896-11-01 82.5000 1896-12-01 65.3000 1897-01-01 85.6000 1897-02-01 95.6000 1897-03-01 73.6000 1897-04-01 81.6000 1897-05-01 90.3000 1897-06-01 92.7000 1897-07-01 82.0000 1897-08-01 82.8000 1897-09-01 60.2000 1897-10-01 70.4000 1897-11-01 80.9000 1897-12-01 63.8000 1898-01-01 85.5000 1898-02-01 96.4000 1898-03-01 70.5000 1898-04-01 75.0000 1898-05-01 82.3000 1898-06-01 85.6000 1898-07-01 79.7000 1898-08-01 83.0000 1898-09-01 56.6000 1898-10-01 61.9000 1898-11-01 69.9000 1898-12-01 56.7000 1899-01-01 77.7000 1899-02-01 86.6000 1899-03-01 67.1000 1899-04-01 77.4000 1899-05-01 85.2000 1899-06-01 65.8000 1899-07-01 76.6000 1899-08-01 77.9000 1899-09-01 50.9000 1899-10-01 59.5000 1899-11-01 65.4000 1899-12-01 52.7000 1900-01-01 75.1000 1900-02-01 83.3000 1900-03-01 58.4000 1900-04-01 70.7000 1900-05-01 79.7000 1900-06-01 64.4000 1900-07-01 78.8000 1900-08-01 79.6000 1900-09-01 55.5000 1900-10-01 63.9000 1900-11-01 71.8000 1900-12-01 53.0000 1901-01-01 76.0000 1901-02-01 86.9000 1901-03-01 63.2000 1901-04-01 79.9000 1901-05-01 90.2000 1901-06-01 67.0000 1901-07-01 79.9000 1901-08-01 79.9000 1901-09-01 59.6000 1901-10-01 71.6000 1901-11-01 77.3000 1901-12-01 60.5000 1902-01-01 85.8000 1902-02-01 96.4000 1902-03-01 72.7000 1902-04-01 85.4000 1902-05-01 93.2000 1902-06-01 72.2000 1902-07-01 85.1000 1902-08-01 85.5000 1902-09-01 57.8000 1902-10-01 66.6000 1902-11-01 72.5000 1902-12-01 53.2000 1903-01-01 74.3000 1903-02-01 81.3000 1903-03-01 58.3000 1903-04-01 71.7000 1903-05-01 78.4000 1903-06-01 63.6000 1903-07-01 78.5000 1903-08-01 80.4000 1903-09-01 58.2000 1903-10-01 65.5000 1903-11-01 72.3000 1903-12-01 51.9000 1904-01-01 75.6000 1904-02-01 81.7000 1904-03-01 57.0000 1904-04-01 71.3000 1904-05-01 82.2000 1904-06-01 60.6000 1904-07-01 74.9000 1904-08-01 76.0000 1904-09-01 51.0000 1904-10-01 67.2000 1904-11-01 79.3000 1904-12-01 59.2000 1905-01-01 85.1000 1905-02-01 92.9000 1905-03-01 67.6000 1905-04-01 80.2000 1905-05-01 86.7000 1905-06-01 62.8000 1905-07-01 74.8000 1905-08-01 73.2000 1905-09-01 44.8000 1905-10-01 56.7000 1905-11-01 65.3000 1905-12-01 49.6000 1906-01-01 73.9000 1906-02-01 79.7000 1906-03-01 56.0000 1906-04-01 71.7000 1906-05-01 79.2000 1906-06-01 53.4000 1906-07-01 69.1000 1906-08-01 67.7000 1906-09-01 42.0000 1906-10-01 52.6000 1906-11-01 58.4000 1906-12-01 40.3000 1907-01-01 64.2000 1907-02-01 71.7000 1907-03-01 49.2000 1907-04-01 64.9000 1907-05-01 73.2000 1907-06-01 53.1000 1907-07-01 65.5000 1907-08-01 65.5000 1907-09-01 45.4000 1907-10-01 52.2000 1907-11-01 50.7000 1907-12-01 41.3000 1908-01-01 64.7000 1908-02-01 70.2000 1908-03-01 52.6000 1908-04-01 65.7000 1908-05-01 73.7000 1908-06-01 61.1000 1908-07-01 76.5000 1908-08-01 79.8000 1908-09-01 57.6000 1908-10-01 67.2000 1908-11-01 74.4000 1908-12-01 52.5000 1909-01-01 76.9000 1909-02-01 81.8000 1909-03-01 58.3000 1909-04-01 69.5000 1909-05-01 75.2000 1909-06-01 58.1000 1909-07-01 71.1000 1909-08-01 72.3000 1909-09-01 48.0000 1909-10-01 56.9000 1909-11-01 65.5000 1909-12-01 46.9000 1910-01-01 71.2000 1910-02-01 77.6000 1910-03-01 57.6000 1910-04-01 69.3000 1910-05-01 78.7000 1910-06-01 56.7000 1910-07-01 69.5000 1910-08-01 70.4000 1910-09-01 46.9000 1910-10-01 57.4000 1910-11-01 67.3000 1910-12-01 47.1000 1911-01-01 74.3000 1911-02-01 81.0000 1911-03-01 56.7000 1911-04-01 72.2000 1911-05-01 79.8000 1911-06-01 59.9000 1911-07-01 75.0000 1911-08-01 74.6000 1911-09-01 44.9000 1911-10-01 57.1000 1911-11-01 65.5000 1911-12-01 46.1000 1912-01-01 71.5000 1912-02-01 79.0000 1912-03-01 56.6000 1912-04-01 71.8000 1912-05-01 78.2000 1912-06-01 60.6000 1912-07-01 75.2000 1912-08-01 72.8000 1912-09-01 51.5000 1912-10-01 58.2000 1912-11-01 54.2000 1912-12-01 41.8000 1913-01-01 60.8000 1913-02-01 64.7000 1913-03-01 52.6000 1913-04-01 61.9000 1913-05-01 69.9000 1913-06-01 59.4000 1913-07-01 73.6000 1913-08-01 74.8000 1913-09-01 58.9000 1913-10-01 70.9000 1913-11-01 78.8000 1913-12-01 57.6000 1914-01-01 79.8000 1914-02-01 85.7000 1914-03-01 67.5000 1914-04-01 82.1000 1914-05-01 84.2000 1914-06-01 69.8000 1914-07-01 53.7000