Grr: iTunes zählt die Anzahl der Wiedergaben oder „Skips“ (das Überspringen) nur unter bestimmten Bedingungen mit:
A track only registers as having been skipped when the action takes place in the 2-20 second range, i.e. if you skip a song either before 2 seconds or after 20 seconds, iTunes will not include it in the Skip count.
As for the Play count, that is only registered when the end of the track is played so if you stop a track before then … or skip it … iTunes will not add it to the total.
(https://discussions.apple.com/message/6742183#6742183)