Quarter	Percentage Of Memberships
1908-01-01	74.8000
1908-04-01	81.7000
1908-07-01	90.7000
1908-10-01	78.8000
1909-01-01	81.5000
1909-04-01	95.0000
1909-07-01	96.9000
1909-10-01	82.2000
1910-01-01	91.1000
1910-04-01	95.8000
1910-07-01	95.5000
1910-10-01	82.0000
1911-01-01	80.7000
1911-04-01	93.6000
1911-07-01	95.0000
1911-10-01	79.1000
1912-01-01	83.0000
1912-04-01	97.3000
1912-07-01	97.5000
1912-10-01	85.1000
1913-01-01	86.6000
1913-04-01	92.1000
1913-07-01	90.8000
1913-10-01	76.1000
1914-01-01	70.3000
1914-04-01	87.6000
1914-07-01	86.2000
1914-10-01	66.2000
1915-01-01	73.7000
1915-04-01	86.8000
1915-07-01	91.5000
1915-10-01	82.4000
1916-01-01	78.0000
1916-04-01	92.4000
1916-07-01	96.3000
1916-10-01	89.0000
1917-01-01	84.0000
1917-04-01	94.2000
1917-07-01	93.8000
1917-10-01	81.5000
1918-01-01	83.7000
1918-04-01	95.5000
1918-07-01	95.2000
1918-10-01	87.8000
1919-01-01	79.0000
1919-04-01	94.5000
1919-07-01	95.2000
1919-10-01	93.7000
1920-01-01	88.3000
1920-04-01	92.1000
1920-07-01	94.7000
1920-10-01	73.6000
1921-01-01	44.4000
1921-04-01	67.3000
1921-07-01	73.0000
1921-10-01	68.8000
1922-01-01	80.1000
1922-04-01	93.0000
1922-07-01	95.7000
1922-10-01	82.5000
1923-01-01	85.3000
1923-04-01	96.6000
1923-07-01	96.3000
1923-10-01	85.9000