knee-high to a grasshopper vs micro

knee-high to a grasshopper

adj
  • short; especially relating to when the subject was a small child 

micro

adj
  • Small, relatively small; used to contrast levels of the noun modified. 

noun
  • a very small person 

  • micromanagement 

verb
  • to micromanage 

How often have the words knee-high to a grasshopper and micro occurred in a corpus of books? (source: Google Ngram Viewer )