tu quoque vs whataboutery

tu quoque

noun
  • An argument whereby an accusation or insult is turned back on the accuser; same to you 

whataboutery

noun
  • Protesting at hypocrisy; responding to criticism by accusing one's opponent of similar or worse faults. 

  • Protesting at inconsistency; refusing to act in one instance unless similar action is taken in other similar instances. 

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