runes of absorption

how much do they absorb per hit for the minor, major and superior, as there is no info i could find.

To add to this question (I'm assuming the poster might not know this also) :

When wearing knight's armor (which already has damage reduction in it), when you put a rune of absorbtion in it, does this absorbtion stack? Does the whole knight's set stack together? And, how much damage reduction is in the knight's set?

id' like to know that too
someone fill me in please

the knight armor doesnt stack and the runes dont stack. thats what ive heard atleast.

Knight's Armour is equivalent to a major rune. The absorption amounts are 1, 2, and 3, respectively in the order you'd expect.