Official statistics on religion are unavailable because religious surveys were eliminated from government census reports after 1967. Tanzania's religious field is dominated by Christianity and Islam as well as of different African Traditional Religions connected to ethnic customs. The word for religion in Swahili, ''dini,'' generally apply to the world religions of Christianity and Islam meaning that followers of African Traditional Religions are considered to be of "no religion". Religious belonging is often ambiguous, with some people adhering to multiple religious identities at the same time (for instance being Christian but also following African Traditional rituals) something which suggests that religious boundaries are flexible and contextual.