I reckon they get close to 20 points a season and have been for years. The decisions even out over the course of a season for everyone else - but they just seem to benefit over and over.
liverpool used to get those decisions in the 70's and 80's kust look back at some games on LFC TV dalglish used to just fall over in front of 24 thousand on the kop refs whould bottle it and give penos it happened regular , i don t see this bias toward united it just beacuse most of the time united have the ball and team at OT sh1t themselves .