I can do that for future or some of the ones i already have, I think it does not have an impact on usage but good piece of info to have for certain.
After looking at the list i think most if not all are 2 ply i am not sure if there are any 1 or 3 ply in the list.
We Shall Never Forget 7/08 '14
We Shall Never Forget 8/19 '11
Toilet Paper Calculations Thread