as a female dev who started her career in Russia about 15 years ago and whose mother was also a dev programming aviation radars, I can tell there was a he-e-ell of sexism and predjudice against women in the society back then, despite all these pretty numbers.
Collapse of the USSR opened up huge opportunities for discrimination and I still remember the job ads for devs where it was explicitly specified "men only" :( I was a subject of sexism, my mom was a subject of sexism.
(there is even more sexism in the modern Rusian society but we are not talking about the modern days)