Unhappy orchestral musicians

There was a study that was done years ago that ranked orchestral musicians second only to prison wardens in terms of job dissatisfaction. Does anyone know which orchestras were surveyed for the study?

When I was a conservatory student, I remember feeling incredulous at the notion of being unhappy in a job where one is paid well to play beautiful music, because frankly, what could be better?

After being a full time member in what is considered one of the great symphony orchestras for over a decade, I can confirm, sadly, that this group is a miserable bunch of people. I would be so grateful if anyone could track down the original study.