This is the percentage of each model with the gator grain top- interesting to note (but maybe not surprising) that the gator top production on an SE or R/T SE was basically triple that of a base model or R/T.

1970 Dodge Challenger:
Challenger (JH23)- 2.5% or 963 approx
Challenger SE (JH29) - 8% or 489 approx.
Challenger R/T (JS23) - 2.3 % or 314 approx.
Challenger R/T SE (JS29) - 7.5% or 281 approx.