Found an old thread on here from a few years back and the guys say around 76.
cs.finescale.com/.../141812.aspx
I would not rely to much on the number the real thing had as I have found this does not always work on kits.
I am a Norfolk man and i glory in being so
On the bench: Airfix 1/72nd Harrier GR.3/Fujimi 1/72nd Ju 87D-3