Here denotational always attracts the extensional meaning in the pair, but the other element genuinely varies. See intension for some more discussion.
... the town the population is spread out with 28.2% under the age of 18, 7.5% from 18 to 24, 33.5% from 25 to 44, 23.9% from 45 to 64, and 6.9% who are 65 years of age or ...