@USA1776 math is hard today, here's my shot at complying with your request...
Mine, bone pressed length and girth (at the base). I also have an up-curve.
View attachment 99360621
View attachment 99360681
My numbers:
BPEG: 20 cm
EG: 15.5 cm
(20 - 13.12) / 1.66 = +4.14 standard deviations.
(15.5 - 11.66) / 1.1 = +3.49 standards deviations.
Volume = 3.14 x (2.5 x 2.5) x 20 = 392.5 cubic cm.