@mloxton there are studies about exactly this that do find a difference, they suppose it has to do with institutional racism. maybe it does or maybe it doesn't. there is probably more definitive research since when I was at university. not trying to say blacks are inferior just that the national statistics aren't uniform when you break it down demographically. I'm not trying to start a fight with you so I'm letting it go, I will actually defer to you if this is your field.