Usage Stats on Request Forms

I have recently gotten some requests on the possibility of pulling usage stats on our request forms to determine how often certain types of forms are used. We can certainly get a rough on this based on the types of projects that are submitted but I'm not seeing any more automated way to know how frequently or infrequently a request form is used or maybe when the last use of that form was. This would be great information to have to determine if we could sunset certain forms or to determine if maybe that form isn't fitting the need we expected to for some reason and could be updated to better suit what our requestors are looking for.