bisexuality vs homosexualness

bisexuality

noun
  • The state of being bisexual (“having both male and female parts or roles”). 

  • The state of being sexually or romantically attracted to members of either sex or gender. 

homosexualness

noun
  • The quality of being homosexual. 

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