pervasive vs ubiquiter

pervasive

adj
  • Manifested throughout; pervading, permeating, penetrating or affecting everything. 

ubiquiter

adj
  • Ubiquitous, widespread. 

noun
  • A microorganism that can be found in most types of environment. 

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