Religious or apostolic organizations or corporations: If such organizations or corporations have a common treasury or community treasury, even if such corporations or organizations engage in business for the common benefit of the members, but only if the members thereof include, at the time of filing their returns, in their Arizona gross income their pro rata shares, whether distributed or not, of the net income of the organizations or corporations for such year. Civic Leagues: Organizations not organized for profit but operated exclusively for the promotion of social welfare or local organizations of employees, the membership of which is limited to the employees of a designated person or persons in a particular municipality, the net earnings of which are devoted exclusively to charitable, educational or recreational purposes.