Quick AK preflop question

[kbinder]

Assume there are six 100BB stacks at $.50/$1. You're in the SB with AK. After 4 limpers, what is your typical raise size?

Assume no reads on your opponents.

[SABR42]

Around $8.

[Imrahil]

$8-$9 depending on the donkiness of the table.

[ronitonline]

I agree, are you just calling with KQs, A10,AJ, AQ though?
Last night at live I had AQ in the BB with 3 limps and SB completed, I wasnt sure what I wanted to do I ended up checking to a horrible flop and folded.