antispatula

Hello, I'm new to this board, and have a question. So I was reading the GD 2005 average salary survey, and I was looking especialy at the audio section of the survey. So I was wondering, out of the 63 of those who sent in their salaries and were used in the survey, were they all hired full-time, or could it mean that they were independant composers (or engineers, but I'm more interested in the music part) that only worked on games? Because I don't know how they could possibly get 63 full time audio people, since audio is started late into production. And I was wondering who usualy made a larger salaries? Indie composers or full-time composers? I don't know who would possibly know this, but any ideas would be great. Thanks!!!!!