Wolof people exceeds 6 million in the three countries. The vast majority of Wolof people are Sunni Muslims. However, religious practice often contains local elements. The complicated relationship had led to the emergence of Sufi traditions from a historic and dominant Sunni Islam environment. The pre-Islamic religious traditions of Wolof are unknown, and neither written or oral traditions about their traditional religion are available. The oral traditions of the Wolof have legends that state them to have been adherents of Islam since the founding of their Kingdom of Jolof. However, historical evidence left by Islamic scholars and European travelers suggest that Wolof
Growth of religion is due to several factors such as the low fertility level among Buddhists (1.6 children per woman), and the old age (median age of 34), compare to the overall population. According to a survey of religion in China in the year 2010, the number of people practicing some form of Chinese folk religion is near to 950 million (70% of the Chinese), of which 173 million (13%) practice some form of Taoist-defined folk faith. Further in detail, 12 million people have passed some formal initiation into Taoism, or adhere to the official Chinese Taoist Association. Comparing this with other surveys,