1 . AGRICULTURE - MONETARY COMPENSATORY AMOUNTS - BUTTER FROM PUBLIC STORAGE - SALE AT A REDUCED PRICE TO PROCESSING UNDERTAKINGS - MONETARY COMPENSATORY AMOUNTS AT A REDUCED RATE - OBJECTIVE - ADJUSTMENT TO THE PRICES REPRESENTING THE MARKET VALUE OF THE PRODUCTS IN QUESTION ( REGULATION NO 1259/72 OF THE COMMISSION , ART . 20 ) 2 . AGRICULTURE - MONETARY COMPENSATORY AMOUNTS - BUTTER FROM PUBLIC STORAGE - SALE AT A REDUCED PRICE TO PROCESSING UNDERTAKINGS - MONETARY COMPENSATORY AMOUNTS AT A REDUCED RATE - GRANT ON EXPORT AND LEVY ON RE-IMPORTATION - USE OF BUTTER AFTER RE-IMPORTATION INCONSISTENT WITH THE COMMUNITY RULES - ADJUSTMENT OF COMPENSATORY AMOUNTS LEVIED ON THE RE-IMPORTATION - CORRESPONDING OBLIGATION TO ADJUST THE COMPENSATORY AMOUNTS PAID ON EXPORT ( REGULATION NO 974/71 OF THE COUNCIL ; REGULATION NO 1259/72 OF THE COMMISSION , ART . 20 )