▁ 8 0 % ▁of ▁these ▁are ▁UK ▁based . ▁P SI ▁hosts ▁an ▁annual ▁three ▁day ▁conference ▁for ▁its ▁members , ▁as ▁well ▁as ▁several ▁one - day ▁meet ings ▁and ▁training ▁courses . ▁It ▁publish es ▁a ▁quarter ly ▁news letter ▁" SP IN " ▁and ▁spons ors ▁the ▁international ▁journal ▁" Ph arma ce ut ical ▁Statistics ", ▁published ▁by ▁John ▁W iley ▁& ▁S ons . ▁ ▁P SI ▁is ▁a ▁member ▁of ▁the ▁European ▁Federation ▁of ▁Statist icians ▁in ▁the ▁Ph arma ce ut ical ▁Indust ry ▁( E FS PI ). ▁ ▁P SI ▁Conference ▁Since ▁ 1 9 7 8 ▁P SI ▁have ▁held ▁a ▁conference ▁ann ually , ▁the ▁locations ▁of ▁which ▁are ▁listed ▁below : ▁ ▁Foot notes ▁▁ ▁The ▁abbre viation ▁P SI ▁is ▁chosen ▁in ▁preference ▁to ▁the ▁more ▁literal ▁S PI ▁to ▁avoid ▁con not ations ▁with ▁the ▁word ▁" sp y ", ▁and ▁to ▁tie ▁in ▁with ▁the ▁Greek ▁letter ▁ Ψ ▁- ▁Greek ▁letters ▁playing ▁a ▁substantial ▁part ▁in ▁statistics . ▁ Ψ ▁was ▁the ▁original ▁logo ▁of ▁P SI . ▁ ▁External ▁links ▁ ▁P SI ▁website ▁ ▁Ph arma ce ut ical ▁Statistics ▁( P SI ▁Journal ) ▁ ▁Category : Ph arma ce ut ical ▁statistics ▁Category : Ph arm acy - related ▁professional ▁associations ▁Category : Stat ist ical ▁soci eties <0x0A> </s> ▁Robert ▁K oe h ler ▁( Nov ember ▁ 2 8 , ▁ 1 8 5 0 ▁– ▁April ▁ 2 3