Stick vs streetworker

Stick

noun

  • A member of the Official IRA. 

name

  • The Chapman Stick, an electric musical instrument devised by Emmett Chapman. 

streetworker

noun

  • A social worker who engages with people on the street. 

  • A prostitute (who works on the street) 

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