Month	Percent
1870-03-01	161.000
1870-06-01	157.000
1870-10-01	170.000
1870-12-01	168.000
1871-03-01	167.000
1871-04-01	162.000
1871-06-01	158.000
1871-10-01	166.000
1871-12-01	170.000
1872-02-01	168.000
1872-04-01	167.000
1872-06-01	165.000
1872-10-01	174.000
1872-12-01	174.000
1873-02-01	174.000
1873-04-01	174.000
1873-06-01	169.000
1873-09-01	177.000
1873-12-01	179.000
1874-02-01	169.000
1874-05-01	167.000
1874-06-01	166.000
1874-10-01	167.000
1874-12-01	168.000
1875-03-01	168.000
1875-05-01	167.000
1875-06-01	161.000
1875-10-01	166.000
1875-12-01	174.000
1876-03-01	169.000
1876-05-01	168.000
1876-06-01	163.000
1876-10-01	164.000
1876-12-01	168.000
1877-01-01	159.000
1877-04-01	163.000
1877-06-01	156.000
1877-10-01	163.000
1877-12-01	163.000
1878-03-01	159.000
1878-05-01	160.000
1878-06-01	155.000
1878-10-01	154.000
1878-12-01	154.000
1879-01-01	150.000
1879-04-01	152.000
1879-06-01	147.000
1879-10-01	144.000
1879-12-01	145.000
1880-02-01	143.000
1880-04-01	143.000
1880-06-01	140.000
1880-10-01	138.000
1880-12-01	137.000
1881-03-01	136.000
1881-05-01	131.000
1881-06-01	128.000
1881-10-01	133.000
1881-12-01	131.000
1882-03-01	135.000
1882-05-01	133.000
1882-07-01	132.000
1882-10-01	135.000
1882-12-01	134.000
1883-03-01	139.000
1883-05-01	136.000
1883-06-01	135.000
1883-10-01	137.000
1883-12-01	134.000
1884-03-01	135.000
1884-04-01	136.000
1884-06-01	139.000
1884-09-01	136.000
1884-12-01	135.000
1885-03-01	131.000
1885-05-01	128.000
1885-07-01	126.000
1885-10-01	128.000
1885-12-01	132.000
1886-03-01	130.000
1886-06-01	131.000
1886-08-01	135.000
1886-10-01	134.000
1886-12-01	134.000
1887-03-01	133.000
1887-05-01	132.000
1887-08-01	135.000
1887-10-01	137.000
1887-12-01	138.000
1888-02-01	134.000
1888-04-01	135.000
1888-06-01	133.000
1888-10-01	135.000
1888-12-01	135.000
1889-02-01	134.000
1889-05-01	132.000
1889-07-01	132.000
1889-09-01	135.000
1889-12-01	136.000
1890-02-01	135.000
1890-05-01	135.000
1890-07-01	135.000
1890-10-01	136.000
1890-12-01	138.000
1891-02-01	137.000
1891-05-01	136.000
1891-07-01	135.000
1891-09-01	137.000
1891-12-01	134.000
1892-03-01	131.000
1892-05-01	128.000
1892-07-01	128.000
1892-09-01	131.000
1892-12-01	131.000
1893-03-01	133.000
1893-05-01	132.000
1893-07-01	139.000
1893-10-01	137.000
1893-12-01	127.000
1894-02-01	123.000
1894-05-01	121.000
1894-07-01	121.000
1894-10-01	122.000
1894-12-01	123.000
1895-03-01	123.000
1895-05-01	124.000
1895-07-01	122.000
1895-09-01	125.000
1895-12-01	125.000
1896-02-01	126.000
1896-05-01	124.000
1896-07-01	124.000
1896-10-01	124.000
1896-12-01	122.000
1897-03-01	119.000
1897-05-01	117.000
1897-07-01	118.000
1897-10-01	119.000
1897-12-01	117.000
1898-02-01	115.000
1898-05-01	113.000
1898-07-01	112.000
1898-09-01	113.000
1898-12-01	110.000
1899-02-01	107.000
1899-04-01	109.000
1899-06-01	108.000
1899-09-01	110.000
1899-12-01	110.000
1900-02-01	109.000
1900-04-01	112.000
1900-06-01	115.000
1900-09-01	114.000
1900-12-01	113.000
1901-02-01	113.000
1901-04-01	113.000
1901-07-01	113.000
1901-09-01	113.000
1901-12-01	114.000
1902-02-01	113.000
1902-04-01	113.000
1902-07-01	114.000
1902-09-01	115.000
1902-11-01	115.000
1903-02-01	115.000
1903-04-01	116.000
1903-06-01	116.000
1903-09-01	117.000
1903-11-01	116.000
1904-01-01	115.000
1904-03-01	116.000
1904-06-01	114.000
1904-09-01	116.000
1904-11-01	114.000
1905-01-01	113.000
1905-03-01	111.000
1905-05-01	112.000
1905-08-01	113.000
1905-11-01	112.000
1906-01-01	112.000
1906-04-01	114.000
1906-06-01	113.000
1906-09-01	114.000
1906-11-01	113.000
1907-01-01	113.000
1907-03-01	114.000
1907-05-01	115.000
1907-08-01	114.000
1907-12-01	117.000
1908-02-01	114.000
1908-05-01	112.000
1908-07-01	112.000
1908-09-01	112.000
1908-11-01	111.000
1909-02-01	110.000
1909-04-01	110.000
1909-06-01	110.000
1909-09-01	110.000
1909-11-01	109.000
1910-01-01	110.000
1910-03-01	111.000
1910-06-01	112.000
1910-09-01	113.000
1910-11-01	111.000
1911-01-01	110.000
1911-03-01	110.000
1911-06-01	108.000
1911-09-01	110.000
1911-12-01	108.000
1912-02-01	108.000
1912-04-01	108.000
1912-06-01	107.000
1912-09-01	108.000
1912-11-01	107.000
1913-02-01	108.000
1913-04-01	108.000
1913-06-01	108.000
1913-08-01	110.000
1913-10-01	109.000
1914-01-01	106.000
1914-03-01	109.000
1914-06-01	108.000
1914-09-01	107.000
1914-10-01	107.000
1914-12-01	106.000
1915-03-01	107.000
1915-05-01	106.000
1915-06-01	106.000
1915-09-01	106.000
1915-11-01	103.000
1915-12-01	103.000