This screen will display a number of useful statistics for the site, including panels with statistics for different sections of the site, since the stats screen will be enhanced in future versions of Tiki will recommend you to examine your stats screen to check what stats are available in your installation.
Some more sections of the stats page could be like the ones in this example:
And finally, there is a couple of table with the most viewed objects in total:
or in the last 7 days:
There're some charts that can be displayed when you click on the "Usage chart" link at the bottom of the page (which will open this page: tiki-stats.php?chart=usage):
Usage chart by sections:
And Daily Usage chart for all sections in global: