You might try libstats (  We used that here for several years until we decided to go with a hosted service.  It's quite flexible in what it can do.

Stephen Westman
From: Code for Libraries [[log in to unmask]] on behalf of Nathan Tallman [[log in to unmask]]
Sent: Tuesday, August 02, 2011 12:48 PM
To: [log in to unmask]
Subject: [CODE4LIB] Open-Source Reference Tracking Software

Other than ATReference, does anyone know of any open-source software
designed for tracking reference statistics? I know there are a few
commercial options, but I'd rather stick with open-source. My apologies is
this has already been discussed on here.

Many thanks!

P.S. Off-topic, but what do you prefer "open source" or "open-source". I'm
not sure which is most correct.

Nathan Tallman
Associate Archivist
American Jewish Archives