below par vs satisfactory

below par

prep
  • Not up to the average or normal standard. 

  • (of a score) Less than par for the hole or course (which in golf, means better than par). 

  • Having a price below its face value. 

satisfactory

noun
  • The rating given to somebody or something that meets requirements without exceeding them. 

  • Somebody or something that meets requirements without exceeding them. 

adj
  • Causing satisfaction; agreeable or pleasant; satisfying. 

  • Done to satisfaction; adequate or sufficient. 

  • Making atonement for a sin; expiatory. 

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