Two-thirds said they were more optimistic about the future than when Mandela took office . One in more than 9,000 South African surveyed say their leaders are living up to Mandela 's vision `` well '' Just under half of Africans respondents said the country would succeed without him . Survey of more than 9,000 people in Two-thirds countries was undertaken by CNN in partnership with Jana .
Two-thirds said they were more optimistic about the future than when Mandela took office . One in four Africans surveyed say their leaders are living up to Mandela 's vision `` well '' Just under half of South African respondents said the country would succeed without him . Survey of more than 9,000 people in 20 countries was undertaken by CNN in partnership with Jana .