How much does each nurture improve a sylesti's stats?

A hatchling's stats increase by 1 for every 8 correct nurtures (except in the case of health; I believe 8 correct nurtures gives 10 health). Also, they increase in age by one hour for every 4 correct nurtures.

Edit to make that a little clearer:

For every 8 correct nurtures, the lowest stat increases by 1. Once the strength, intelligence, dexterity, and agility are maxed, every 8 correct nurtures will give 10 health. Once health is maxed, every 8 correct nurtures will give 1 mana. Once everything is maxed, nurtures give no benefits to hatchlings.

(Nurtures do not increase stats of eggs. Every 6 correct nurtures increases an egg's maturity by one hour.)

Thanks!!! This cleared up a ton!!!