Firearms and automobile sales and manufacturing by model are traced due to federal reglulations but even that info is usually several years behind when made public. As GIRLYmann stated production statistics would be guarded information by most companies. I would add that Buck is probably the largest domestic manufacturer and that their sales lead other domestic manufacturers' US made knives. But one has to consider that most other domestic manufacturers produce limited product here in the US and import many of their models from overseas. Spyderco, SOG, Kabar, Ontario, Cold Steel, and Gerber have almost all their product line manufacured outside the US. Also some companies like Cold Steel, TOPS and ESEE dont actually manufacture their own knives but have them made under contract by another manufacturer. I thisk there are far more Chinese/Pakistani knives sold everyday for every Buck knife purchased. Major retailers such as Walmart, Cabelas, Wholesale Sports offer far more imported knives than Buck products and probably sell them at a higher volume.