If you want an estimate, maybe around 10 times, and I'm 64 years old.
I have not started transition quite yet, since I am working on the blessing of my wife.
However, I am in the middle of a slow purge right now. The good kind. I am slowly but surely getting rid of all male clothing. I still have some, but I donate or discard up to 5 male items per week whereas I purchase up to 5 female items per week.