Graph supporting Column average Or way to display overall average

Something like this -




Currently, I can do aggregation and then do a overall aggregation using  column agg, but it is in tabular report only. It would be great is I can portray this is graph as well 

@shiv_kumar_katiyar Thanks for bringing this up! it is a valid use-case. We are adding this to the product backlog, I will update you here once we consider this enhancement.