Many unions in Norway in the private sector (if not most) generate statistics based on information from their members regarding salary, education, experience and so on, so for me as a developer/sysop there really is no need to check what my colleagues are paid. I work at a place where everyone has a different background, so I don't expect the same pay for everyone. But I expect that I'm paid similar to others with the same responsibility, tasks, background, etc within the industry and geographical area.