Research conducted by the Scottish Social Attitudes Survey in 1979 found that more than 95% of those living in Scotland identified as "Scottish" in varying degrees, with more than 80% identifying themselves as "British" in varying degrees. When forced to choose a single national identity between "Scottish" and "British", 57% identified as Scottish and 39% identified as British. British national identity entered a sharp decline in Scotland from 1979 until the advent of devolution in 1999. In 2000, when forced to choose a single national identity between "Scottish" and "British", 80% identified as Scottish and only 13% identified as British, however 60% still identified as British to some degree.