one hundred percent vs without reservation

one hundred percent

adv
  • Totally, completely. 

adj
  • Complete, entire, whole, perfect. 

  • Completely sure. 

  • Used other than figuratively or idiomatically: see one hundred, percent. 

  • Well, good, okay. 

without reservation

How often have the words one hundred percent and without reservation occurred in a corpus of books? (source: Google Ngram Viewer )