I would not add a name of a student I supervised. It does not add anything to your CV. You are including personal data of third persons and considering a weighing of interests this is not justified (IMHO).
The one exception I can think of, is if they made a stellar carrier and are well-known in their field or even won a prestigious priceaward.
If you want to show the actual number of supervised works, list the titles. That would show what kind of work was done and the spectrum of the topics you supervised.