Supervisors have been given guidelines on the numeric ratings everyone receives in their annual performance reviews. For your information the numeric ratings with descriptions are:
Superior Performance 8-9 ; Surpasses Expectations 6-7 ; Achieves Expectations 3-5 ; Below Expectations 1-2 Unsatisfactory 0
“There should be no deviation from the above numeric ranking, e.g. fractions or decimals. The performance assessment will be reviewed for consistency and adherence to the guidelines.” quote from the guidelines.