attendance vs skipping

attendance

noun
  • The act of attending; the state of being present; presence. 

  • The persons or number of persons present. 

  • The frequency with which one has been present for a regular activity or set of events. 

skipping

noun
  • The game, activity, or exercise of jump rope. 

  • The act by which something is skipped or omitted. 

How often have the words attendance and skipping occurred in a corpus of books? (source: Google Ngram Viewer )