acquisitiveness vs self-obsession

acquisitiveness

noun
  • The quality of being acquisitive; propensity to acquire property; desire of possession. 

  • The faculty to which the phrenologists attribute the desire of acquiring and possessing. 

self-obsession

noun
  • preoccupation with self; egocentrism; selfishness 

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