 In 1999, 38–40% of the expat population of the Cayman Islands was of Jamaican origin and in 2004/2005 little over 50% of the expatriates working in the Cayman Islands (i.e.8,000) were Jamaicans (with the next largest expatriate communities coming from the United States, United Kingdom and Canada).In September 2004, The Cayman Islands were hit by Hurricane Ivan, causing mass devastation, loss of human and animal life (both wild and domestic/livestock) and flooding, with some accounts reporting that the majority of Grand Cayman had been underwater and with the lower floors of buildings being completely flooded in excess of 8 ft. An Ivan Flood Map is available from the Lands & Survey Dept.