Jock vs Josh

Jock

name

  • A given name. 

  • A nickname. 

  • A surname. 

noun

  • A Scot. 

Josh

name

  • A diminutive of the male given name Joshua. 

  • A city mentioned in the Book of Mormon. 

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