I had 6 pullets (now 5, lost one 12/11), the first started laying Aug 9, in September I had several 6 egg days so assume all were laying.
Aug 9 - Dec 31 (144 days or 20 1/2 weeks) total eggs = 564.
Aug = 50
Sep = 140
Oct = 164
Nov = 132
Dec = 78
Nov & Dec the eggs production slowed down I assume due to shorter days. Since the days have started getting longer, I am now seeing 3 eggs a day pretty regular. I am looking forward to spring because I have 22 pullets I am raising now that should start laying by March.
Edited to add mine are White Rocks (Standard)