"Usable length"

Fellas I’m kinda being to lazy to search and want new opinions at the same time. Anyway, how much legth is waisted on average between your pubic bone, and the edge of her vulva on average. I know that this will vary according to body types and positions, but give me an average during missionary and rear entry also.

To go even further, I would like for some of you to guess the distance of your pubic bone to the remnants of your woman’s hymen (ring or opening) during during max penetration.