Actually we tend to not shoot at all. We live longer that wayMaybe Europeans shoot first and ask questions later, but here in America we shoot only when we have no other option.
But if your society is allegedly so much more law abiding then this kind of overkill would not be necessary. Judging by your statistics that 'last resort' seems to be arrived at rather too oftenHaving a gun is about keeping that last resort on the table. About 1/3rd of the time, simply displaying the gun stops the attack cold