According to the CouchSurfing Web site, the average age of members is twenty-eight, with more than a third between the ages of eighteen and twenty-four (seven hundred and ninety-three members are between eighty and eighty-nine).

NEWYORKER: You��re Welcome

The Simpsons is in its twenty-third season, and who knows, may continue well into another generation.

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The religiously unaffiliated have increased to one fifth of the electorate and one third of twenty-somethings.

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It is now in its twenty-third season, on Fox, and the format has barely budged: viewers ride with police officers as they drive around, in search of perpetrators.

NEWYORKER: The Reality Principle

Students from the United States, meanwhile, came in seventeenth in reading, twenty-third in science, and an especially demoralizing thirty-first in math.

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