“9% of respondents indicated that they did not have car insurance.”

Your company conducted a survey of car owners to find out their opinions of different car insurance companies. You're writing a summary of the results. You write:

9% of respondents indicated that they did not have car insurance.

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“Over one in five Americans suffer from obesity.”

You're writing a blog post about how you think America should solve the problem of having too many overweight people. You're introducing the topic. You write:

Over one in five Americans suffer from obesity.

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