(6)in Article 38(3), the second subparagraph is replaced by the following:‘Support under point (b) of Article 36(1) shall only be granted to cover for loss caused by the outbreak of adverse climatic events, animal or plant disease, pest infestation, or measures adopted in accordance with Directive 2000/29/EC to eradicate or contain a plant disease or pest or environmental incident, which destroy more than 30 % of the average annual production of the farmer in the preceding three-year period or a three-year average based on the preceding five-year period, excluding the highest and lowest entry. Indexes may be used in order to calculate the annual production of the farmer. The calculation method used shall permit the determination of the actual loss of an individual farmer in a given year. Member States may decide to reduce that percentage of 30 %, however, to not less than 20 %.’;