Or just remove them alltogether/cluster in 0-10/11-100/101-1000/1001-10000 GH/s (maybe with the respective "5"-numbers too, so "11-150/51-100/101-500"...)
"Exact" values are useless anyways there, unless there's something like http://bitcoincharts.com/markets/
that shows something like these 30 days sparklines with pool hashrates instead (and I doubt that would be easily integrated in a wiki page).
I'm not too sure about the relevance of payout decimals. The only reason some pools just pay out 2 decimals and keep the change for the next payout is that older bitcoin clients can actually loose that smaller amount afaik (not sure if it's an display issue or if it is really possible to not get that amount). It's not to get rich, but to keep their users from actually loosing money.