aloha vs bye-bye

aloha

intj
  • Expressing good wishes when greeting or parting from someone; hello; goodbye. 

noun
  • An utterance of aloha (see Interjection, below). 

  • Good wishes, love. 

bye-bye

intj
  • Goodbye. 

noun
  • A goodbye. 

  • Bedtime for a toddler, going to sleep, going to bed. 

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