Okay, using Peter Dechert's and Peter Kitchingman's books I tried to count the number of RF-camera's and lenses produced by Canon (yes, I've got to much time on my hands. But today is my day off, taking care of our little girl and right now she's having her afternoon-nap) . Counting the number of camera's was quite easy, Peter Dechert has listed the (approximate) number of Camera's procduced for every type. Starting with the S-II he identifies 35 different models with a production total of 507.714 bodies.
Finding the number of lenses ever made was more difficult. I'm not even sure if I read Peter Kitchingman's numbers right, but I have simply added up the values he listed under "units". However, I get the impression the true number of lenses produced was somewhat lower, maybe about 15% lower. So my guestimate is that Canon has made about 700.000 lenses.
So every RF forum member is entitled to owning 1.5 lens per body. Which means I first have to buy another body before I can buy more lenses 😉. Of course the limitation only counts for Canon lenses, you can buy as many Leica, CV and Nikkor lenses as you like 😀
Bart