I think there’s no hard rules. I think in Australia, with the Dallas Buyers Club fiasco, the judge said a fair compensation for pirating a copy of the film was the price of the DVD, but because the studio were trying to sue a single individual for millions they threw the case out.

As far as know there is no precedent for piracy punishments on individuals. The best they can do is ask your ISP to send you a strongly worded letter.