630 - Agriculture & related technologies 143
631 - Techniques, equipment & materials 122
634 - Orchards, fruits & forestry 86
636 - Animal husbandry 83
639 - Hunting, fishing & conservation 81
632 - Plant injuries, diseases & pests 70
635 - Garden crops (Horticulture) 60
633 - Field & plantation crops 33
637 - Processing dairy & related products 8
638 - Insect culture 3