Sorry - that's not linked into anything I have found - but in a suitably Caroline Criado Perez style, the elephant in the room is of course that most of these crimes are by males...
But I had a quick look and found this from 2013 in Wales:
(pp7) The gender of hate crime offenders is overwhelmingly male, albeit participation in hate offences motivated by sexual orientation, age and disability, involves female participation in around 18% of cases.
https://orca.cardiff.ac.uk/id/eprint/58880/1/understanding-who-commits-hate-crime-and-why-they-do-it-en.pdf
So if you follow that logic, trans people need separate unisex facilities for their own safety - because being in the women's also comes with a fairly high risk which is separate and different from the need for women's needs for female-only changing rooms.
DU reported this as a hate incident - so the Sandie Peggie case could be used to show why it's not safe to assume that trans people will be safe from hate crime in the ladies CR... we all need to campaign for trans safety in the unisex room away from the horrid horrid TERFs.