ahead of vs following

ahead of

prep
  • Preceding. 

  • In front of. 

  • Having made more progress than. 

  • In the future of. 

  • In advance of. 

following

adj
  • About to be specified. 

  • Blowing in the direction of travel. 

  • Coming next, either in sequence or in time. 

noun
  • A thing or things to be mentioned immediately after. 

  • A group of followers, attendants or admirers; an entourage. 

  • Vocation; business; profession. 

prep
  • After, subsequent to. 

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