Sky vs Staple

Sky

name

  • A unisex given name from English. 

  • A surname. 

Staple

name

  • A habitational surname from Middle English. 

  • A village and civil parish in Dover district, Kent, England (OS grid ref TR2756). 

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