bisexuality vs pansexuality

bisexuality

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

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

pansexuality

noun
  • A sexual orientation characterized by the potential for aesthetic attraction, romantic love and/or sexual desire for people regardless of their gender or sex. 

  • Sexuality that encompasses all kinds of sexuality. 

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