So if you are booked on a QF codeshare flight eg MEL/SIN/MEL, DRW/SGN/DRW etc that's operated by JQ metal, whose stats do you fall in to? The QF 18% or the JQ 8%?
Looking at the BITRE report it would definitely be JQ, as the tables all refer to the "operator" of the services, and none of the non-operating codeshare airlines are there ... like AF, UL, AI, AA, LH, 9W, US, OA etc ..