expect vs proact

expect

verb
  • To predict or believe that something will happen 

  • To consider obligatory or required. 

  • To consider reasonably due. 

  • To be pregnant, to consider a baby due. 

proact

verb
  • To take action in advance of an expected event 

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