i.e. vs in other words

i.e.

adv

  • That is, namely, in other words, that is to say. 

in other words

adv

  • used to introduce an explanation, simplification, or clarification 

prep

  • Stated or interpreted another way; Used to introduce an explanation, simplification, or clarification. 

How often have the words i.e. and in other words occurred in a corpus of books? (source: Google Ngram Viewer )