everyday vs from day to day

everyday

adj
  • appropriate for ordinary use, rather than for special occasions 

  • commonplace, ordinary 

noun
  • the ordinary or routine day or occasion 

from day to day

adv
  • focusing on one day at a time. 

  • daily. 

How often have the words everyday and from day to day occurred in a corpus of books? (source: Google Ngram Viewer )