AWOL vs on the lam

AWOL

noun
  • Absence without proper authority from the properly appointed place of duty, or from unit, organization, or other place of duty at which one is required to be at the time prescribed. 

  • Someone or something missing. 

  • A person who holds AWOL status. 

  • Somebody who is absent without permission. 

adj
  • Absent without official leave (permission). 

on the lam

adj
  • Running away, usually from the police; on the run. 

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