You should not give too much files as this could take age if they are too numerous. Clicking on the link will open a HTML page which give you a graphic showing the previous accesses to this page for a limited number of days. Of course, if you have 100 hosts accessing your homepage, it doesn't mean you have 100 people visiting your website. In the first case, the session stats will show you the right number of people because you need to spend a few amount of time or read a few amount of HTML pages before being included as a visitor. In the second case, use the Document stats which will warm you about HTML files too big.
Third section is the main page stats.
To avoid downloading a huge file if you have a big number of HTML pages on your server, the stats page have been sorted by directories in a table. If you select a directory, only HTML pages which belong will be displayed. If you can click on a directory, it means there are some pages stats inside. You will be able to view the accesses for each page for the last few days. If the access number is displayed against a blue background, it means that no increase or decrease have been detected from the previous day.