Exact production figures

I just picked up a 71 demon with 340 4spd, bench seat, which seems like an odd pairing and was wondering how to calculate just how many came like this. The production numbers I can find just say X amount with vinyl, or X amount high impact color, etc. But nothing like X amount with high impact paint, vinyl , bench ,4 spd with 340. Is there a way to figure out how many of these there were like this? Thanks!