piece of work vs sinner

piece of work

noun
  • A person who has a strong and unusual personality, especially one with seriously unpleasant character flaws (e.g. a nasty piece of work). (This sense came about due to Hamlet’s soliloquy (see sense 1 above)). 

  • A product or manufactured article, especially an item of art or craft. 

sinner

noun
  • A person with negative qualities; one who does bad things. 

  • A person who sins or has sinned by the action or identity indicated or previously mentioned 

  • A person who sins or has sinned. 

  • An unregenerate person. 

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