Not sure if and how it's possible to filter / find this data, hence asking you all 
I've got a hunch that stories coded by a developer X, take on average longer before somebody picks them up from 'peer review' column (when comparing with stories coded by other devs).
I'd like to verify it by data and see the average time it takes for a story between it has status 'peer review' & it's picked up (assigned) by anybody. Afterwards, I'd like to see the data per field 'developer' (as in the previous column, each dev would have indicated themselves in the field 'developer').

Question: where and how I can search for this data? Thanks in advance!