From the U.S. Census Department, “the CIR program has been providing monthly, quarterly, and annual measures of industrial activity for many years. The primary objective of the CIR program is to produce timely, accurate data on production and shipments of selected products.”

These reports are available in Adobe .pdf or Excel formats. The CIR codes do not match SIC or NAICS codes, so SCL Biz suggests browsing the subject listing. Information for each industry varies depending on the type of product (e.g., Carpets & Rugs give shipments in dollars and square yards of different weaves; Flour Milling Products reports sacks and tons of various grains milled, etc.).

For more websites see the SCL Biz Guide to Internet Resources.