pickpocket vs sticky fingers

pickpocket

noun
  • One who steals from the pocket of a passerby, usually by sleight of hand. 

verb
  • To pick pockets; to steal. 

sticky fingers

noun
  • An inclination to steal. 

  • Petty thieves. 

How often have the words pickpocket and sticky fingers occurred in a corpus of books? (source: Google Ngram Viewer )