rap over the knuckles vs tell off

rap over the knuckles

tell off

verb
  • To count (members of a sequence), to enumerate. 

  • To rebuke, to reprimand, or to admonish, often in a harsh, angry, direct way. 

  • To divide and practise a regiment or company in the several formations, preparatory to marching to the general parade for field exercises. 

How often have the words rap over the knuckles and tell off occurred in a corpus of books? (source: Google Ngram Viewer )