According to the latest updated 2011 Reported Maritime Security Incidents – The MSR Rolling Total currently stands at:
506 total number of incidents as at 30 Sep 11
344 incidents of piracy or attempted piracy. *
43 incidents of piracy & hijack of vessels.
101 incidents of robbery at anchorages
148 incidents of robbery or attempted robbery at anchorages or berths.
4 Political incidents.
10 Acts of Terrorism.
* This includes 14 incidents where the crew have locked themselves into a ‘citadel’ while the pirates were in board. The pirates failed to gain control of the vessel and abandoned the vessel usually after doing some damage.