Values

	0	Absent (not practiced in the culture, or practiced but not a food source)	1
	1	Minor (forms a relatively insignificant part of diet)	6
	2	Medium (a significant food source, but not one of the most important sources of food)	3
	3	Major (one of the most important sources of food)	26
	4	Principal (more important than any other source of food)	97

Agriculture / Horticulture

This section concerns land and water-based subsistence activities. Subsistence activities are those that are aimed at obtaining food directly. Activities undertaken for commerce rather than subsistence should be coded under "trade / wage labour" rather than land and water-based subsistence activities.