diversity vs manifoldness

diversity

noun
  • The quality of being diverse or different; difference or unlikeness. 

  • Equal-opportunity inclusion. 

  • A variety; diverse types or examples. 

manifoldness

noun
  • The quality of being manifold, diversity. 

  • A generalized concept of magnitude. 

  • multiplicity 

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