connote vs mean to say

connote

verb
  • To express without overt reference; to imply. 

  • To possess an inseparable related condition; to imply as a logical consequence. 

  • To signify beyond its literal or principal meaning. 

  • To require as a logical predicate to consequence. 

mean to say

verb
  • To imply or intend to convey with one's words; used to correct or clarify one's previous utterance, or to seek such clarification. 

How often have the words connote and mean to say occurred in a corpus of books? (source: Google Ngram Viewer )