It shows the apparent location based on the IP address of the most recent 500 separate visitors to the forum. It doesn't separate registered users, guests, posters, lurkers, or people who came here by mistake -- although some of that information is available elsewhere in their data. 6.66%
of the visitors are probably mistakes - they hit the first page and never go any further.
FWIW, the average visitor here looks at 13 pages during their visit. 66% use Internet Explorer, 26% use Firefox, 3% each use Netscape and Safari. 69% connect via cable or DSL, 11% via dialup, and 17% via corporate LANs (get back to work, you slackers, and pay in to my social security!).
The data also tries to track 1st time visitors versus returning visitors, but since every visit shows as a new visitor when the tracking first started (a couple of days ago), it will take a couple of weeks before this ratio is useful.