0-8. I'd say average is 3-4. With my new heated house, I've been etting around 6 clutches a year from each female.
Clutch size is anywhere from 12-30 eggs per clutch with average being around 20-24. I've got a small female that regularly lays 12-18. My medium female lays 26 every time. It's freaky. My large female lays anywhere from 22-30.
Not all of these hatch mind you, fertility varies throughout the year. My first clutch of each new year for each female tends to be only 50-60 percent fertile. The second and third clutches do much better. Then the eggs layed during the hotter months drop back down in fertility rate again.