We’ve had loan data on the OPAC for a couple of years now, although it’s only previously been visible to staff IP addresses. Anyway, a couple of months ago, I revamped it using Google Graphs and I’ve finally gotten around to adding a stats link that anyone can peruse — you should be able to find it in the “useful links” section at the foot of the full bib page on our OPAC.
As an example, here are the stats for the 2006 edition of Giddens’ “Sociology“…