dumb question stars $6.50-$55

[laser16]

I play hu sngs on stars from the $6.50 to the $55 level and it seems like at least once per every 30 sngs or so (pure speculation) I will open my button 3x on the first hand and an unknown opponent will push on me. What range are people calling with here? Obviously pushing 75bbs over a 3x raise indicates a weak player in general but i have never called enough to get a good idea of the range people are pushing this spot. I think ive been calling with AJ+ 88+ thoughts?