Populations have potential birth rates {fecundity}|. Greater numbers of eggs and sperm released or better mating methods can increase fecundity.
Populations have birth rates {fertility}|.
Number of children under age, per woman aged 15 to 44, times 1000 {fertility ratio} is greatest for farmers, lowest for city, and greater for lower classes.
Populations increase at annual rates {growth rate}.
6-Sociology-Population-Statistics
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Date Modified: 2022.0225