Regular pay, but only 2/3 of pay need be provided if the reasons for the leave are as described in reasons 4, 5, or 6 above. However, in no event shall paid sick leave exceed (a) $511 per day and $5,110 in the aggregate for a use described in reasons 1, 2, or 3 above; or (b) $200 per day and $2,000 in the aggregate for a use described in reasons 4, 5, or 6 above.