A poll by the London Evening Standard in December 2007, which surveyed a range of the capital's communities, including Muslims, found that 49% of those surveyed considered Islam as generally intolerant, while 44% saw it as generally tolerant. A total of 51% felt that Muslims were isolated from other communities to a degree, with 12% believing that the majority of them were. A large majority (81% to 7%) believed that the most holy day in Islam, Eid, should not be officially celebrated by the British government, and 88% opposed Muslim teachers covering their faces at work (see British debate over veils). A majority (55%) wanted immigration of Muslims to be cut, with 33% wanting it cut greatly. Islam was seen as the cause of the 7 July attacks on the city in 2005 by 52% of the population, with 35% seeing it as a major factor. Views from the survey which were not in line with the largely negative views included that 71% would vote for a Muslim Mayor of London if they were the best candidate (with 16% against such a vote).