I am not sure what you are saying, Simon.
However, I do know that the "evidence" that you need likely will never happen.
A couple years ago, I invested a great deal of time into trying to establish that evidence that so many people are skeptical of. I spent weeks extrapolating 70 years of data from the Canadian census and the JW yearbooks to break down age estimates in order to use those figures for a statistical analysis of blood deaths in the JW population.
I was working with a statistician from the university who was the department head of the math department. Everything was going really well and all we had to do was wait for original data from several medical studies that had been published that showed the higher risk that JWs face when they refuse a blood transfusion. And that is when we ran into a problem. None of the researchers that Dr. V had contacted asking for original data had answered him. No answer from any of them - they totally ignored his attempts to get the data. Dr. V said that it was the first and only time that had happened to him.
And that is why I doubt that an accurate estimate can ever be done: The medical establishment will not release the original data on JWs. They circle the wagons.
And my death estimate project was dead in the water.