There are 4 different body number sequences at the LA plant, one for standard interior coupes, one for deluxe interior coupes, one for standard interior convertibles, and one for deluxe interior convertibles all running at the same time. Each sequence started at 1 and worked upward from there, so there are 4 cars with the same body number until one of the sequences ran out of numbers. Deluxe interior convertible body numbers have the lowest total body numbers at around 2100, and standard interior coupes have the highest total body numbers. The style trim number would be different on each series of tags, 12437 for standard interior coupe, 12367 for deluxe interior coupe, 12467 for standard interior convertible, and 12667 for deluxe interior convertible. These numbers are not to be confused with L6 or V8 engine designations like the VIN tag would show, even though the series of numbers appear similar. Take your VIN and subtract 100K from it, and that is your approximate build number, ie if the VIN is L110645, then your car would have been the 10,645th camaro built at the LA plant, and the 8031st standard interior coupe.
Just a small correction, the deluxe interior coupe would be 12637.