If the cruise ship schedule is accurate, today is the only day this month there are 3 ships in port. Same with May and June though in April there were 6 days that had 3 or more ships in port.
I don't recall many days pre-Irma when we would see less than 2 ships a day. Sure there have been just don't remember.
Those are some high capacity ships hope they spend a lot of money in SXM.