I read that the Israeli army quit putting women in combat units not because of female casualties but because male casualties in the units with females went up because the men would generally take bigger risks to protect or aid a female soldier than a male soldier. I wonder if that applies to the numbers you cited?
on average there is one male cop killed every 2 1/2 days.
Female’s rate of death is one per every 3 months which is 3% of total deaths even though women are 12% of the force.
So, your question, in lieu of these statistics, certainly is a good one isn’t it!?