Total Members (1960):
3,783,073
Total Members (1961):
3,813,227
Total Members (1962):
3,909,485
Total Members (1963):
3,996,294
Total Members (1964):
4,123,196
Total Members (1965):
4,231,036
Total Members (1966):
4,289,379
Total Members (1967):
4,461,111
Total Members (1968):
4,608,019
Total Members (1969):
4,591,984
