The port authorities in Bermuda have a PDF document that reports on
2008 cruising schedules . There are six ships from three lines that do the lion's share of the port visits - 1 Princess ship, 2 Royal Caribbean, and 3 Norwegian - 112 visits between them. 68 out of 138 total cruise ship visits were made by Norwegian. 22 other ships are responsible for 25 visits.
The vast majority of sailings come from Middle and South Atlantic ports - New York, Cape Liberty (New Jersey), Baltimore, and Charleston.