Umpiring is one of the hardest gigs in the AFL - they do not and cannot get it right every week and are overly scrutinised.

But in a stunning showing, West Coast (919) have received almost double the amount of free kicks as the next team, North Melbourne (472), over the past 15 years.

Take from it what you will, but the following data, appearing on reddit.com courtesy of u/Wandering on r/AFL, highlights every AFL side's free kick differential since 2003.

Spare a thought for Sydney (-516), who sit last in the plus/minus differential, followed by Hawthorn (-348) and Fremantle (-308).