Thank you for getting back to me. I guess I did not a clear enough question.
I did not specifically check to omit system files. I deliberately looked only in the pictures folder.
Before trying to load the output .txt file into a statistics package, I was looking to see if the wheel had already been invented. I.e, if this information was already in one place. (If this info were a header to the screen output others might find it useful in seeing the size of the task of clean up.)
(1) total files including duplicates. Yes I can get this from Explorer. Files looked at by CCleaner.
(2) unique file names i.e., only counting a file once. I presume that in the processing CCleaner makes a list of all the unique entities. Here a unique entity (hit) would be a file that has the same filename.type, size, contents.
(3) number of filenames with no duplicates #2 minus #4
(4) number of sets of duplicates? In the screen output these are separate groups or sets of files that have the same name, size, and contents. Eyeballing the .txt file shows separations.