In addition to all other items which are now or may hereafter be authorized to be paid from the Law Library Fund, it shall be the mandatory duty of the trustees of the Law Library Fund to pay annually for the sole use of the retirement system a sum equal to the contributions made to the retirement fund by the employees, but not to exceed the percentages of the current annual salaries, established in Section 954 of this title, of all employees whose salaries are paid either in whole or in part out of the Law Library Fund of such county.
The total employer and employee contributions shall not exceed the percentages of the monthly compensation of each member set forth in Section 954 of this title.
Okla. Stat. tit. 19, § 961