Well, the suicidal could stab themselves to death with a fork, but...
The stats in the OP leave out of the equation, how many gun owners do not use their guns for those purposes. Nor does it take into account the amount of times guns have prevented crime and murder. It is incomplete.
If 50 gun owners don't use their guns for any of those purposes and 2 do, why disarm the 50? Let's instead, deal with the 2.
If someone wants to kill themselves or someone else, taking my gun away won't do one thing to stop them. Not one thing. It would however prevent me from protecting myself from the mobs we are allowing to take over our streets and neighborhoods. Or the men who decided to break into my home.