Month Per Cent Of Total Membership 1888-01-01 90.8000 1888-02-01 92.2000 1888-03-01 93.5000 1888-04-01 94.1000 1888-05-01 94.2000 1888-06-01 94.5000 1888-07-01 93.3000 1888-08-01 94.7000 1888-09-01 94.6000 1888-10-01 94.7000 1888-11-01 95.5000 1888-12-01 96.4000 1889-01-01 96.7000 1889-02-01 97.2000 1889-03-01 97.4000 1889-04-01 98.0000 1889-05-01 97.8000 1889-06-01 97.4000 1889-07-01 97.9000 1889-08-01 98.1000 1889-09-01 97.9000 1889-10-01 97.3000 1889-11-01 98.4000 1889-12-01 98.6000 1890-01-01 98.2000 1890-02-01 98.7000 1890-03-01 98.8000 1890-04-01 98.4000 1890-05-01 98.3000 1890-06-01 97.9000 1890-07-01 97.8000 1890-08-01 97.4000 1890-09-01 97.4000 1890-10-01 96.7000 1890-11-01 96.9000 1890-12-01 97.0000 1891-01-01 96.8000 1891-02-01 96.5000 1891-03-01 97.2000 1891-04-01 96.9000 1891-05-01 96.6000 1891-06-01 96.3000 1891-07-01 96.6000 1891-08-01 95.7000 1891-09-01 94.8000 1891-10-01 94.5000 1891-11-01 93.9000 1891-12-01 94.7000 1892-01-01 94.5000 1892-02-01 93.9000 1892-03-01 92.8000 1892-04-01 92.5000 1892-05-01 92.8000 1892-06-01 93.0000 1892-07-01 92.7000 1892-08-01 92.9000 1892-09-01 92.7000 1892-10-01 91.3000 1892-11-01 89.5000 1892-12-01 88.9000 1893-01-01 88.0000 1893-02-01 88.4000 1893-03-01 89.2000 1893-04-01 89.6000 1893-05-01 89.5000 1893-06-01 90.0000 1893-07-01 89.3000 1893-08-01 88.6000 1893-09-01 87.8000 1893-10-01 87.8000 1893-11-01 87.6000 1893-12-01 87.4000 1894-01-01 89.3000 1894-02-01 90.3000 1894-03-01 89.5000 1894-04-01 89.9000 1894-05-01 90.0000 1894-06-01 90.1000 1894-07-01 88.0000 1894-08-01 87.5000 1894-09-01 87.6000 1894-10-01 87.7000 1894-11-01 88.5000 1894-12-01 87.7000 1895-01-01 88.6000 1895-02-01 89.3000 1895-03-01 90.8000 1895-04-01 91.3000 1895-05-01 91.9000 1895-06-01 92.2000 1895-07-01 92.5000 1895-08-01 92.7000 1895-09-01 92.8000 1895-10-01 92.4000 1895-11-01 93.6000 1895-12-01 93.3000 1896-01-01 94.3000 1896-02-01 95.3000 1896-03-01 95.9000 1896-04-01 96.2000 1896-05-01 96.2000 1896-06-01 96.3000 1896-07-01 96.3000 1896-08-01 95.9000 1896-09-01 95.3000 1896-10-01 95.8000 1896-11-01 96.2000 1896-12-01 96.1000 1897-01-01 96.5000 1897-02-01 96.9000 1897-03-01 97.1000 1897-04-01 97.1000 1897-05-01 97.5000 1897-06-01 97.1000 1897-07-01 96.6000 1897-08-01 95.2000 1897-09-01 93.3000 1897-10-01 92.1000 1897-11-01 92.0000 1897-12-01 91.3000 1898-01-01 92.3000 1898-02-01 93.0000 1898-03-01 95.5000 1898-04-01 96.0000 1898-05-01 96.8000 1898-06-01 96.9000 1898-07-01 96.7000 1898-08-01 96.7000 1898-09-01 96.9000 1898-10-01 97.0000 1898-11-01 97.4000 1898-12-01 96.8000 1899-01-01 97.0000 1899-02-01 97.5000 1899-03-01 97.4000 1899-04-01 97.8000 1899-05-01 97.6000 1899-06-01 97.9000 1899-07-01 97.8000 1899-08-01 97.7000 1899-09-01 97.7000 1899-10-01 97.5000 1899-11-01 97.7000 1899-12-01 97.5000 1900-01-01 97.8000 1900-02-01 97.6000 1900-03-01 97.7000 1900-04-01 97.7000 1900-05-01 97.9000 1900-06-01 97.6000 1900-07-01 97.6000 1900-08-01 97.4000 1900-09-01 97.3000 1900-10-01 97.2000 1900-11-01 96.5000 1900-12-01 96.1000 1901-01-01 95.9000 1901-02-01 96.2000 1901-03-01 96.8000 1901-04-01 96.3000 1901-05-01 96.9000 1901-06-01 96.6000 1901-07-01 96.8000 1901-08-01 96.4000 1901-09-01 96.4000 1901-10-01 96.2000 1901-11-01 95.6000 1901-12-01 94.5000 1902-01-01 95.3000 1902-02-01 95.2000 1902-03-01 95.4000 1902-04-01 95.2000 1902-05-01 95.0000 1902-06-01 94.5000 1902-07-01 95.2000 1902-08-01 95.0000 1902-09-01 93.7000 1902-10-01 93.3000 1902-11-01 93.2000 1902-12-01 91.8000 1903-01-01 92.8000 1903-02-01 93.8000 1903-03-01 94.2000 1903-04-01 94.6000 1903-05-01 95.1000 1903-06-01 94.8000 1903-07-01 94.5000 1903-08-01 94.2000 1903-09-01 93.1000 1903-10-01 92.5000 1903-11-01 91.3000 1903-12-01 90.4000 1904-01-01 91.5000 1904-02-01 92.2000 1904-03-01 92.6000 1904-04-01 92.5000 1904-05-01 92.2000 1904-06-01 92.3000 1904-07-01 91.8000 1904-08-01 92.0000 1904-09-01 91.0000 1904-10-01 90.4000 1904-11-01 90.5000 1904-12-01 90.1000 1905-01-01 92.0000 1905-02-01 92.5000 1905-03-01 92.9000 1905-04-01 92.8000 1905-05-01 93.6000 1905-06-01 93.6000 1905-07-01 93.5000 1905-08-01 93.2000 1905-09-01 93.2000 1905-10-01 93.9000 1905-11-01 94.4000 1905-12-01 95.0000 1906-01-01 95.8000 1906-02-01 96.1000 1906-03-01 96.4000 1906-04-01 96.5000 1906-05-01 96.7000 1906-06-01 96.5000 1906-07-01 96.6000 1906-08-01 96.5000 1906-09-01 96.4000 1906-10-01 95.3000 1906-11-01 94.2000 1906-12-01 94.3000 1907-01-01 95.6000 1907-02-01 96.2000 1907-03-01 96.1000 1907-04-01 96.4000 1907-05-01 96.3000 1907-06-01 96.1000 1907-07-01 95.8000 1907-08-01 95.1000 1907-09-01 94.4000 1907-10-01 94.1000 1907-11-01 93.5000 1907-12-01 92.0000 1908-01-01 91.9000 1908-02-01 91.3000 1908-03-01 89.9000 1908-04-01 88.6000 1908-05-01 88.0000 1908-06-01 87.2000 1908-07-01 86.8000 1908-08-01 85.6000 1908-09-01 85.1000 1908-10-01 85.2000 1908-11-01 85.1000 1908-12-01 84.7000 1909-01-01 85.7000 1909-02-01 86.0000 1909-03-01 86.1000 1909-04-01 86.1000 1909-05-01 86.0000 1909-06-01 86.2000 1909-07-01 86.0000 1909-08-01 86.8000 1909-09-01 87.5000 1909-10-01 88.1000 1909-11-01 89.2000 1909-12-01 89.7000 1910-01-01 90.1000 1910-02-01 91.4000 1910-03-01 92.0000 1910-04-01 93.3000 1910-05-01 93.8000 1910-06-01 95.0000 1910-07-01 94.8000 1910-08-01 94.6000 1910-09-01 94.2000 1910-10-01 93.4000 1910-11-01 92.6000 1910-12-01 93.0000 1911-01-01 95.8000 1911-02-01 96.6000 1911-03-01 96.6000 1911-04-01 96.8000 1911-05-01 97.2000 1911-06-01 96.9000 1911-07-01 96.5000 1911-08-01 96.0000 1911-09-01 96.5000 1911-10-01 96.6000 1911-11-01 97.1000 1911-12-01 96.6000 1912-01-01 97.3000 1912-02-01 97.0000 1912-03-01 86.7000 1912-04-01 95.5000 1912-05-01 97.0000 1912-06-01 97.1000 1912-07-01 96.7000 1912-08-01 97.5000 1912-09-01 97.7000 1912-10-01 97.8000 1912-11-01 97.9000 1912-12-01 97.4000 1913-01-01 98.1000 1913-02-01 98.2000 1913-03-01 98.2000 1913-04-01 98.2000 1913-05-01 98.1000 1913-06-01 97.7000 1913-07-01 97.8000 1913-08-01 97.8000 1913-09-01 97.2000 1913-10-01 97.3000 1913-11-01 97.7000 1913-12-01 97.1000 1914-01-01 97.4000 1914-02-01 97.6000 1914-03-01 97.7000 1914-04-01 97.4000 1914-05-01 96.9000 1914-06-01 96.6000 1914-07-01 96.0000 1914-08-01 92.8000 1914-09-01 95.1000 1914-10-01 96.2000 1914-11-01 98.1000 1914-12-01 98.4000 1915-01-01 99.1000 1915-02-01 99.1000 1915-03-01 99.3000 1915-04-01 99.3000 1915-05-01 99.3000 1915-06-01 99.4000 1915-07-01 99.4000 1915-08-01 99.4000 1915-09-01 99.5000 1915-10-01 99.6000 1915-11-01 99.7000 1915-12-01 99.6000 1916-01-01 99.6000 1916-02-01 99.7000 1916-03-01 99.7000 1916-04-01 99.6000 1916-05-01 99.7000 1916-06-01 99.7000 1916-07-01 99.8000 1916-08-01 99.7000 1916-09-01 99.8000 1916-10-01 99.8000 1916-11-01 99.8000 1916-12-01 99.8000 1917-01-01 99.8000 1917-02-01 99.8000 1917-03-01 99.8000 1917-04-01 99.8000 1917-05-01 99.8000 1917-06-01 99.8000 1917-07-01 99.8000 1917-08-01 99.8000 1917-09-01 99.8000 1917-10-01 99.8000 1917-11-01 99.8000 1917-12-01 99.8000 1918-01-01 99.8000 1918-02-01 99.9000 1918-03-01 99.9000 1918-04-01 99.9000 1918-05-01 99.9000 1918-06-01 99.9000 1918-07-01 99.9000 1918-08-01 99.9000 1918-09-01 99.9000 1918-10-01 99.9000 1918-11-01 99.8000 1918-12-01 98.6000 1919-01-01 97.4000 1919-02-01 96.7000 1919-03-01 97.2000 1919-04-01 97.2000 1919-05-01 97.5000 1919-06-01 98.0000 1919-07-01 98.0000 1919-08-01 98.3000 1919-09-01 97.7000 1919-10-01 95.2000 1919-11-01 94.3000 1919-12-01 93.8000 1920-01-01 93.9000 1920-02-01 97.0000 1920-03-01 98.1000 1920-04-01 98.6000 1920-05-01 98.5000 1920-06-01 98.2000 1920-07-01 98.1000 1920-08-01 97.7000 1920-09-01 96.9000 1920-10-01 95.5000 1920-11-01 94.9000 1920-12-01 93.8000 1921-01-01 91.4000 1921-02-01 89.1000 1921-03-01 86.0000 1921-04-01 79.0000 1921-05-01 71.2000 1921-06-01 69.2000 1921-07-01 72.7000 1921-08-01 74.6000 1921-09-01 75.6000 1921-10-01 76.1000 1921-11-01 74.4000 1921-12-01 74.1000 1922-01-01 73.3000 1922-02-01 73.3000 1922-03-01 72.3000 1922-04-01 69.7000 1922-05-01 70.4000 1922-06-01 71.8000 1922-07-01 73.9000 1922-08-01 74.4000 1922-09-01 74.0000 1922-10-01 74.3000 1922-11-01 74.4000 1922-12-01 75.0000 1923-01-01 76.7000 1923-02-01 77.6000 1923-03-01 79.3000 1923-04-01 80.1000 1923-05-01 79.7000 1923-06-01 79.7000 1923-07-01 79.5000 1923-08-01 79.0000 1923-09-01 79.2000 1923-10-01 79.6000 1923-11-01 80.0000 1923-12-01 82.2000 1924-01-01 83.9000 1924-02-01 84.3000 1924-03-01 85.1000 1924-04-01 85.4000 1924-05-01 86.8000 1924-06-01 86.8000 1924-07-01 87.9000 1924-08-01 87.3000 1924-09-01 87.1000 1924-10-01 86.6000 1924-11-01 87.0000 1924-12-01 86.6000 1925-01-01 87.1000 1925-02-01 87.2000 1925-03-01 87.1000 1925-04-01 87.8000 1925-05-01 87.2000 1925-06-01 86.5000 1925-07-01 85.9000 1925-08-01 85.9000 1925-09-01 86.1000 1925-10-01 85.8000 1925-11-01 85.7000 1925-12-01 85.8000 1926-01-01 85.9000 1926-02-01 86.0000 1926-03-01 86.1000 1926-04-01 86.5000 1926-05-01 80.9000 1926-06-01 80.5000 1926-07-01 79.4000 1926-08-01 79.3000 1926-09-01 78.7000 1926-10-01 78.6000 1926-11-01 78.8000 1926-12-01 80.9000 1932-01-01 66.3000 1932-02-01 66.6000 1932-03-01 67.8000 1932-04-01 67.8000 1932-05-01 66.6000 1932-06-01 66.8000 1932-07-01 65.2000 1932-08-01 65.2000 1932-09-01 65.3000 1932-10-01 65.9000 1932-11-01 66.1000 1932-12-01 66.5000 1933-01-01 65.8000 1933-02-01 65.8000 1933-03-01 67.2000 1933-04-01 68.3000 1933-05-01 69.9000 1933-06-01 71.2000 1933-07-01 71.5000 1933-08-01 72.0000 1933-09-01 73.1000 1933-10-01 74.4000 1933-11-01 75.6000 1933-12-01 76.6000 1934-01-01 76.4000 1934-02-01 77.1000 1934-03-01 78.2000 1934-04-01 79.7000 1934-05-01 80.5000 1934-06-01 81.2000 1934-07-01 81.9000 1934-08-01 81.8000 1934-09-01 81.9000 1934-10-01 82.3000 1934-11-01 82.7000 1934-12-01 83.1000 1935-01-01 82.5000 1935-02-01 82.5000 1935-03-01 83.1000 1935-04-01 83.5000 1935-05-01 83.5000 1935-06-01 83.6000 1935-07-01 85.1000 1935-08-01 85.6000 1935-09-01 85.5000 1935-10-01 86.3000 1935-11-01 86.9000 1935-12-01 87.4000 1936-01-01 87.1000 1936-02-01 87.4000 1936-03-01 88.2000 1936-04-01 88.8000 1936-05-01 89.4000 1936-06-01 89.7000 1936-07-01 90.6000 1936-08-01 90.6000 1936-09-01 91.0000 1936-10-01 91.5000 1936-11-01 91.9000 1936-12-01 92.1000 1937-01-01 91.9000 1937-02-01 92.3000 1937-03-01 92.4000 1937-04-01 92.9000 1937-05-01 92.8000 1937-06-01 93.1000 1937-07-01 93.2000 1937-08-01 93.0000 1937-09-01 93.4000 1937-10-01 93.4000 1937-11-01 93.0000 1937-12-01 92.7000 1938-01-01 92.2000 1938-02-01 91.9000 1938-03-01 92.1000 1938-04-01 92.1000 1938-05-01 91.8000 1938-06-01 91.2000 1938-07-01 91.5000 1938-08-01 91.5000 1938-09-01 91.2000 1938-10-01 91.3000 1938-11-01 91.4000 1938-12-01 91.8000 1939-01-01 91.3000 1939-02-01 91.7000 1939-03-01 92.0000 1939-04-01 92.5000 1939-05-01 93.3000 1939-06-01 93.7000 1939-07-01 94.2000 1939-08-01 94.4000 1939-09-01 95.3000 1939-10-01 95.1000 1939-11-01 95.4000