absence of mind vs absenteeism

absence of mind

noun
  • A state or the quality of being absent-minded (abstracted, preoccupied). 

absenteeism

noun
  • The state of being absent, especially frequently or without good reason; the practice of an absentee. 

  • The practice of absenting oneself from the country or district where one's estate is situated. 

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