Reddit reviews Men of Steel: Surgery in the Napoleonic Wars

Can't find any peer-reviewed articles at the moment, but this is a breakdown of types of trauma that British military surgeons dealt with during the napoleonic wars, according to M.Crumplins "Men of Steel: Surgery in the Napoleonic Wars ":

62,0% : Musket-, Rifle-, Pistol Bullets


13,5% : Sword, Saber


8,0% : Projectiles


5,0% : "Canister"-Artillery


4,0% : "Common shell"-Artillery


3,9% : Lances, Pikes


1,2% : Bayonet


1,1% : Other Trauma (z.B. Falling, Burns)


0,7% : Ramrods


0,5% : Knives

At least as far as bayonet wounds are concerned, this seems to be very similar to your numbers from the American civil war. A caveat is of course, that the british did a disproportionate amount of naval fighting, so this might have skewed the numbers somewhat.

EDIT: Spelling, grammar.