I had to go back and look after looking at your comment. It does seem to track pretty consistently. I've always speculated that a part of the pay gap might be

I had to go back and look after looking at your comment. It does seem to track pretty consistently. I've always speculated that a part of the pay gap might be explained by willingness to negotiate. I wonder if recruiters being more normal in this industry helps. In my own experience the recruiter I've worked with has helped a lot in salary negotiations.