Does anybody have statistics on altimeter accuracy. That is, if the altimeter reads (say) FL360, how likely am I to really be at that altitude (or more precise, at that air-pressure-altitude) and how likely am I to be off? I guess hwat I'm looking for is a mean divergence (hope to be zero) and a standard deviation / variance, plus preferablytype of distribution (is divergence normally distributed?)

Thans!

Daniel