Total Members (1920):
389,352
Total Members (1921):
406,160
Total Members (1922):
473,411
Total Members (1923):
511,857
Total Members (1924):
541,027
Total Members (1925):
592,132
Total Members (1926):
606,955
Total Members (1927):
595,565
Total Members (1928):
600,316
Total Members (1929):
606,396
