Vancouver has again topped a list of the top 10 most liveable cities in the world, giving the Canadian west coast city an extra boost as it opens the 2010 Winter Olympics. In the annual survey by the Economist Intelligence Unit, Vancouver scored 98 percent on a combination of stability, health care, culture and environment, education, and infrastructure - a score unchanged from last year. The city has also topped the index since at least 2007. In the 2010 ranking, there was little change in the top positions with Vienna, Melbourne and Toronto still taking the second, third and fourth positions and the top 10 dominated by Canadian and Australian cities which took seven of the 10 slots. Johannesburg, which is hosting the soccer World Cup finals in June, came in 92nd place, the highest score in sub-Saharan Africa. The Economist Intelligence Unit survey ranked 140 cities on 30 factors such as health care, culture and envi-ronment, and education and personal safety, using research involving resident experts and its own analysts. Following is a list of the top 10 most liveable cities as ranked by The Economist: 1. Vancouver, Canada 2. Vienna, Austria 3. Melbourne,Australia 4. Toronto, Canada 5. Calgary, Canada 6. Helsinki,Finland 7. Sydney, Australia 8. Perth, Australia 9. Adelaide, Australia 10. Auckland, New Zealand The bottom 10 cities were: 1. Harare, Zimbabwe 2. Dhaka , Bangladesh 3. Algiers , Algeria 4. Port Moresby, Papua New Guinea 5. Lagos, Nigeria 6. Karachi, Pakistan 7. Douala, Cameroon 8. Kathmandu, Nepal 9. Colombo, Sri Lanka 10. Dakar, Senegal
