breaker's yard vs scrapheap

breaker's yard

noun
  • a place where old or accident-damaged vehicles are broken up; a wreck yard 

scrapheap

noun
  • A junkyard. 

  • A pile in which junk is discarded. 

  • A collection of discarded or rejected items or ideas. 

How often have the words breaker's yard and scrapheap occurred in a corpus of books? (source: Google Ngram Viewer )