I was attending a gathering, about two years ago, that had a lot of folks (about 40), attending remotely. Mostly women; many immuno-compromised.
I remember looking at the remote attendees screen, and counting the women that were currently getting, or had just gotten over, cancer treatment.
I counted six. I also knew of a couple of men, sitting in the room with me, that had had treatment, over a year, previously.
I don't know what the average is supposed to be, but I think 6/60 (10%), is a wee bit high.