"A Marti Report revealed Ford built 2,932 coupes for 1967 “with these engine/transmission codes,” referring to the 390 with 4-speed. Marti’s book, “Mustang … by the Numbers (1967-1973) reveals additional breakdowns of 543 and 4,403 of the 390-powered coupes built with 3-speed manual and automatic transmission, respectively. So, total 390-coupe production equaled 7,878 for 1967, compared to 12,135 fastbacks, and 2,181 convertibles."I would like to know the meaning of this word "breakdowns" in this context.