Screw the statistics. I'd use the best people I can find to do the job.
I don't give a s**t about your color, your gender, your gender preference, your religious beliefs your "challenges" (physical or mental) or your age.
Can you get the job done?
Can you get the job done in the social environment of the company?
You don't hire a social group. You hire a person. Once you start excluding people on their membership, or non membership of a group you just cut yourself off from a significant chunk of the potential workforce. I could say it's bigoted, narrow minded and prejudiced.
But actually it's simply inefficient.