anyone know how many 1971 Twisters were produced?

We have a 71 duster ev2, white top, 3 spd manual, orange/white/black plaid interior, sharkstooth grille. Pretty neat looking combo, but rough. :( Thinking it is a Twister due to the sharkstooth grille option? Guess I need to look at the option tag tomorrow when I go out there.