Unlike other universities in Scotland, Glasgow does not have a single students' association; instead, there exist a number of bodies concerned with the representation, welfare, and entertainment of its students. Due to the university's retention of its separate male and female students' unions, which since 1980 have admitted both sexes as full members, there are two independent students' unions, as well as a sports association and the students' representative council. None of these are affiliated to the National Union of Students: membership has been rejected on a number of occasions, most recently in November 2006, on both economic and political grounds. A student-run "No to NUS" campaign won a campuswide referendum with more than 90% of the vote.