The only thing I've seen for production numbers, were for GMC trucks. That was in an LMC catalog, and is just broken down by year and 1/2 or 3/4 ton for 1947-1950. Then for 1952-53 it's broken down additionally by three GMC plants, Pontiac, Oakland, and St. Louis. It also looks like they're serial number ranges, so you'd have to do some math to get totals. But maybe each line is for a particular (unidentified) plant in the 1947-50 section.
