Nevertheless, a steady increase has occurred since 2015, with more than twice as many requests for PA being made and authorised in 2017 as in 2015 across the Member States.
Unatoč tomu, od 2015. njihov je broj u stalnom porastu, pri čemu je 2017. u svim državama članicama bilo dvostruko više podnesenih i odobrenih zahtjeva za prethodno odobrenje u usporedbi s 2015.