Averaging Axial Stresses in Abaqus SE

Hello. I've got a question in regards to information display in Abaqus. I am trying to extract the data from the model (tetrahedral-shaped engine hoist) and am trying to find average axial stresses. Since I'm new to this software, I've got no clue where or how I do that. hours of searching in help section didn't result in much answer. I am able to see "S,S11" stress distribution (which as I understand is the axial stress) however I do not know how to average it in the software. Can you please suggest me what shall I do. Thanks a lot for help beforehand! :)