Kev vs scally

Kev

noun
  • A working-class male. 

name
  • A diminutive of the male given name Kevin. 

scally

noun
  • A jobless yob who has little or no education and is suspected of having committed some type of crime. 

  • A flat cap or driving cap. 

  • A rascal or miscreant, a scallywag. 

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