All our graphic modules (Individual reports, compare individual reports) have been upgraded to version 1.5.0, which includes a filter to consider unique visitor hits
In other words, if this option is ON, the graphics will show only unique hits (one page hit per day/month/year per user), instead of counting all hits. This way you can see the unique visitors that, for instance, readed an article in a given day.
The "unique visitors" can be applied using the User ID criteria or the IP criteria.
Available for Joomla 1.5, 2.5 and 3.0