@gungasnake,
I'm not sure why it should have to be pointed out, but it seems rather silly to discuss the percentage of fatalities due to a particular cause rather than the absolute number.
The whole point of a percentage is to express a relative number, which isn't very relevant in this case.
It's not like a person is limited to reducing only one type of accident.
I would think that a safety-minded person were evaluating whether to own a firearm, the question would not be "what percentage of accidents are due to firearms" but rather "does owning a firearm make me more safe or less safe?"
The answer to
that question, of course, is that owning a firearm makes one less safe.