I don't have exact number, unfortunately. All I have are the experiences of working there for several years while watching people show up, get burned, and leav

I don't have exact number, unfortunately. All I have are the experiences of working there for several years while watching people show up, get burned, and leave. This means I can't really answer your question about proportions with hard data. I can tell you that the ratio in engineering, and particularly in the kernel team / cluster management area (where I was at the end) was seriously lopsided just by looking at things. This meant when a woman did leave, it was pretty obvious. I know this isn't much to go on, so I started digging around. Lucky for you, I found a short video I shot when there was some kind of release celebration in September 2009. I counted 25 people in my shot (so I'm not including myself), all standing around in front of what used to be my office. Of those 25 people, there was one woman. So, add me behind the camera, and that's 8%. That's the best I can do for now. Hope that helps.