1967 Dart GT Convertible How Rare is it?

Does anyone know how many 1967 dart GTS 383 4 speed convertibles were made? My boss has an original documented (fender tag, vin, matching # drive train) one.


383 - 4.....229 4 spd ..... 228 Auto HT & Convert.

Total GT ..... 34,496 HT .....3729 Convert

SWAG
Use the same ratio of HT/Convert total ~ 25 383 4 spd (ca. 1967) ~ 3 (present)