Re: All this shows me....
I do trust these stats to be accurate records of two different outfits' atempts to measure OS use and have no difficulty with the number of decimal places quoted.
Think about the problem, they cannot take a sort of photo-finish snapshot of the whole internet at 10:00 hours GMT; I imagine it's not technically possible and in any case it would skew the results towardsr European users. So they have some measuring procedures that don't overly favour certain times and places and basically add up very large numbers of detected OSs.
Nothing wrong with that and the results are intriguing.