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There are public SQL dumps that you can download and analyze for these answers. I'm not sure when is the next public dump going to be out. if Anton is busy I imagine it may take a while.
Well, the inability of yourself to reach this data does not imply that the moderators wish to keep it hidden somewhere.
Shouldn't we somehow account for increases in the MO population? There should be more people to view and upvote.
You might think so, but people don't vote that way. The higher the score of a post, the less likely it is to get another upvote.
Some traffic stats were generated on this meta thread. I don't have the chance to recompute those now, but at the time we were getting about 30 questions per day. MO is very close to 1000 days old (998 days old today, I think), and we've just passed 31,000 questions, so it seems like the question rate is fairly constant.
Here's a graph of weekly visits since the beginning (from google analytics):
By the way, the public database dumps are available on http://dumps.mathoverflow.net/.
Alex, the syntax for inserting images is 
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