Error in Homepage's footer ?

[masteraks]

If we navigate to Homepage of ODP, www.dmoz.org at footer of page we would find a log something like this:

x,xxx,xxx sites - xx,xxx editors - over x,xxx,xxx categories

 

and at the same time if we re-load the page, we would find that these info have been changed from a big margin. For example like: number of editors may increase or decrease in thousands and that too within one second.

 

So could any Editor tell me whether this is a bug or this is actual data ?