The previous comment makes no sense. The mean average pay for each gender is a straightforward calculation, and is exactly what it says on the tin. There may or may not be good reasons why certain practices have higher gender pay gaps, but regardless, this figure is a piece of factual evidence. Evidence of what? In a profession where most architecture schools are 50/50, it shows that women are - for whatever reasons - getting stuck at the bottom of the profession and/ or not valued as much as men by their employers. As someone who runs a practice with 48% women, and can report a pay gap of 1% in favour of women, I see no good reason at all why high-quality firms would not be able to attract and keep high-ranking women architects. And consequently no reason other than old-fashioned gender bias why a high-quality firm should not be able to keep their gender pay gaps in check.