bi vs bisexual person

bi

noun

  • A bisexual person. 

  • A type of jade disk produced in ancient China. 

  • A biceps muscle. 

adj

  • Bisexual. 

  • Bigender. 

bisexual person

noun

  • a person attracted to persons of either gender 

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