devil strip vs sidewalk

devil strip

noun
  • The grassy area between the sidewalk and the street. 

sidewalk

noun
  • (usually) a paved footpath located at the side of a road, for the use of pedestrians 

  • any paved footpath, even if not located at the side of a road 

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