631 - Techniques, equipment & materials 98
635 - Garden crops (Horticulture) 76
630 - Agriculture & related technologies 33
638 - Insect culture 25
634 - Orchards, fruits & forestry 20
632 - Plant injuries, diseases & pests 17
636 - Animal husbandry 13
633 - Field & plantation crops 12
639 - Hunting, fishing & conservation 11