Utiliser "birthrate" dans une phrase

1. “You must realize that among our people, weddings are a very rare and special event, because of our low birthrate and longevity

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2. Of these groups, only Group one and Group four keep a birthrate above

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3. rockets to 30 percent, such is the birthrate of the immigrant communities

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4. I have computed that it amounts to two hundredths of one percent of total slave ownership, an amount absolutely overwhelmed by the slave birthrate

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5. Their birthrate increased from once every 4-5 years to one every 2-3 years

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