loose change vs pocket money

loose change

noun
  • Coins of little value kept in one's pocket or bag. 

  • A sum of money considered small or insignificant. 

pocket money

noun
  • A small sum of cash, carried on the person, for small, daily expenses. 

  • A small sum of money given to a child, by a parent or guardian. 

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