WAG vs confusion

WAG

noun
  • A wife or girlfriend of a sports star or other celebrity, originally and especially of an association football player. 

  • A wild-assed guess; a rough estimate. 

confusion

noun
  • The act of mistaking one thing for another or conflating distinct things. 

  • A lack of clarity or order. 

  • The state of being confused; misunderstanding. 

  • Lack of understanding due to dementia. 

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