dishcloth vs pot scrubber

dishcloth

noun
  • A cloth used to dry dishes. 

  • A cloth used to wash dishes. 

pot scrubber

noun
  • A mesh or ball of wires or fibres used to scrub pots and other cookware. 

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