I was going on the assumption that most people in population centers use or have used the internet; and that the number of people that were not in population centers was less than 20%; and I mental-gymnastics'd myself to thinking that those population centers tend to be on the shore, so I said it that way.
You're right; but I figured 95-99% in population centers and much more than 50% everywhere else, which ends up being more like at least 86% of the people in the United States used the internet in the last year.
Not necessarily right, but that's how I go there.