AMGA and MGMA will have some of these stats in their annual salary surveys. You can order the report directly from them. For academic salaries, the AAMC also has data although I don't know if they have breast surgeons broken out separately, which I know AMGA does. The ASBS just finished their 1st salary survey but final analysis is still being done, a preliminary report was given at the meeting. Eventually this may be available, but they are still deciding in what format it will be released and to what distribution. If you need a specific number for a specific purpose PM me and perhaps I can help you out.