"Wages" does not include the amount of any payment, including any amount paid by an employer for insurance or annuities, or into a fund, to provide for any payment, made to or on behalf of an employee or any of his or her dependents under a plan or system established by an employer which makes provision for his or her employees generally, or for his or her employees generally and their dependents, or for a class or classes of his or her employees, or for a class or classes of his or her employees and their dependents, on account of any of the following:
Ca. Unemp. Ins. Code § 931