Lara, owner of Huck’s Oil Change Ltd., meets with a life insurance agent to discuss a renewal package for the group benefits plan offered to employees. Lara employs 20 individuals, all of whom are covered under the group plan. The employee turnover rate is 10%, and the insurer has rated the group’s claims experience credibility at 20%. In establishing the group’s premiums under the new plan, how much weight will the insurer give to the standard manual rate for a comparable group?