The affairs of such an association shall be managed by such officers and directors as may be chosen in a manner prescribed by the bylaws of the association, provided each member shall be entitled to cast at least one ballot in all elections and votes and that a member who has had for six months an average of more than 100 and not more than 250 employees to whom he or she is bound to pay compensation under the workers' compensation law shall be entitled to two ballots, and that each additional 150 employees shall entitle such member to an additional ballot, but no member shall be entitled to cast more than ten ballots. (Amended 1981, No. 165 (Adj. Sess.), § 1.)