Holland America has a 1:00pm arrival. I understand you can arrive as early as 11:00am. If that is true, do more people arrive early or near the the 1:00pm time?
What time do they usually let you in your room? I do realize our luggage can come at anytime.
As far as how many people arrive late or early, that depends heavily on how many are flying in the same day. Those who are don't have any choice, so it is pretty random. We live in Florida and usually cruise out of Florida ports. We enjoy just being on board and getting even a single extra minute is good!...not that we're addicted to cruises or anything.