Hi,
Here's the stats of my egg laying monster:
Make: English White Campbell
D.O.B.:   15th May 2009
1st Egg:  2nd Sept 2009
Age when 1st laid: 17 weeks
Eggs laid: 1 per day, everyday without fail before 7am and still going strong. Snow, malting, dark winter has not affected her at all. She's on for 360+ / yr at this rate.
Conditions: Treated as a pet, loves being stroked and sitting on your lap. Sleeps with 3 chickens in a coup. Freeranges in 200m^2 garden all day then in on an evening for strokes.
Hope that helps.
Woka