How many penalties have been awarded

How many penalties have been awarded to the away team at Old Trafford since the premiership began?

 

Probably very, very few. But is that because of the referees or the quality of the home team?

 

Not a lot lol. There was a stage when it went on for bout 7 years. But in the recent 5 years they have been a few but not a lot teams get enough chances to get in the box.