Novelists' Income Survey

I stumbled across this survey on Tobias Buckell's site. He received information from more than a hundred sf and fantasy novelists about their advances and how many books they've written and how many years they've been writing. He then organized the data (keeping the authors anonymous) so that we could get an idea of how much a novelist makes. Interesting, to me, is the fact that a first-time novelist can expect an advance around $5000. After five to seven years and as many books, a novelist can expect $12,500. Not bad. Not enough to live on, but it doesn't take every second of every day to write a novel, either.