EXIFinfo is a package to provide statistics from EXIF data from all your images. It includes a shell script, a database file, a PHP-script, and several CGI scripts. It provides statistics on how often you use your lenses, which month you are shooting most images, etc.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.