1967 Barracuda fastback fender tag deciphering

In the 70s or 80s my dad wrote Chrysler Historical and they sent him a letter stating the number of 67 Dart convertibles and reiterated no other break down was available.

I have seen stock reports for some years that talked about percentages of HT, 4 Door etc but that was over the entire Chrysler corp. You could use those percentages against the total number of a particular car line and come close