(1) Subject to the limits of funds appropriated for the implementation of ORS 327.147 and 327.152, a school district shall not be apportioned less for its average daily membership for any year subsequent to the 1989-1990 fiscal year than was estimated for the 1989-1990 fiscal year.
(2) If the funds appropriated for the implementation of ORS 327.147 and 327.152 are insufficient to meet the obligations incurred under ORS 327.147 and 327.152, each district eligible to receive funds under ORS 327.147 or 327.152 shall receive its pro rata share of the funds available for the implementation of ORS 327.147 and 327.152.