inmate vs leaseholder

inmate

noun
  • A person who shares a residence (such as a hotel guest, a lodger, or a student living on campus), or other place. 

  • A person confined to an institution such as a prison (as a convict) or hospital (as a patient). 

leaseholder

noun
  • A person who is tenant by holding a lease; a lessee. 

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