If within two years of provisional allocation of the specific reference quantity the producer can show to the satisfaction of the competent authority that he has been making direct sales and/or deliveries for at least 12 months and that these direct sales and or deliveries have, during the last twelve months, reached a level of at least 80 % of the provisional specific reference quantity, that quantity shall be definitively allocated to him. Otherwise the reference quantity definitively allocated shall be that actually delivered or sold directly.