During the year 2008 there were 21,420 transits of the Suez Canal, which gives an approximate (but obviously not precise) indication of the number of vessels passing through the Gulf of Aden. During the same period 42 vessels, including a few yachts, were hijacked in the Gulf of Aden and the western area of the Indian Ocean, which put the risk of a hijack during 2008 at approximately one in 500 …