A farmer sells wheat used to make flour and bread. Which demographic would be most useful for him to track in order to improve marketing of his wheat for the next five years?

General population growth is the most useful measure because more people will generally mean greater demand for staple foods such as flour and bread, and therefore for the wheat used to make them. Tracking population growth over the next five years can help the farmer estimate that market. Birth counts alone are less useful because newborns do not directly indicate near-term demand as well as overall population does.

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