I can give data from a decade later; 1989, last year of the Cold War (Tornado F3)
hrs
236 total
182 day
54 night
(6) twin-sticker
17 day IMC
16 night IMC
150 sorties
His average sortie length was 40 minutes, whereas mine was over an hour and a half.
I see he only had 26 hours in day / good weather,vs 165 hrs for me.
I would guess a large part of his sorties were GCI. I had 47 sorties on low level affiliation training or big exercises, and 10 dedicated D/ACT.
I note the Hungarian guy did more hours IMC at night in 1979 than he actually spent airborne*
(*yes, I was the Sqn stats Officer for a while)