chump change vs pennies

chump change

noun
  • A sum of money considered to be insignificant. 

  • An amount of remuneration, reward, or other monetary recompense considered to be insultingly small. 

pennies

noun
  • An unspecified, but very small amount of money. 

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