I am not sure how relevant this is to the aid industry other than the fact that most attacks occur in locations where we routinely work. The Live Piracy Map is a project of the International Chamber of Commerce’s Commercial Crime Services Division.
I once sailed through the Gulf of Aden en route from Sri Lanka to Aden aboard a 30ft sailboat. I remember steering clear of Socotra which, at the time, was home base for many pirates. It looks like they have decided to try their luck a little further afield.