garbage man vs street sweeper

garbage man

noun
  • Someone, usually male, whose job it is to collect refuse from people's homes and take it to be processed. 

street sweeper

noun
  • A person who is employed to sweep streets, pavements, and gutters, keeping them clear of litter. 

  • A machine used to sweep streets. 

How often have the words garbage man and street sweeper occurred in a corpus of books? (source: Google Ngram Viewer )