65% of AdSense Publishers are Earning $100 per Month?

SERoundTable reported the poll that’s being run at the DigitalPoint forum showing results that an estimate of 65% of the active AdSense publishers earning $100 or more.

Here’s the pie chart of the poll:

I think a poll like this would be more reliable if it’s run by the Google AdSense team itself either on its blog or straight from our AdSense accounts. What do you think? Or will Google even make public some info like this?