9. If the employee dies before becoming eligible for a pension and has at least 2 years of service credited under the plan, the employee’s spouse or, if the employee has no spouse, the employee’s successors, are entitled to receive the actuarial value of the supplementary benefit established on the date of death in accordance with the actuarial assumptions and methods provided for in subparagraph 2 of the first paragraph of section 68 of the Act.