How vs Sterling

How

name
  • A town in Oconto County, Wisconsin, United States, named after Calvin F. How Jr. 

  • A surname. 

  • A hamlet in Hayton parish, City of Carlisle district, Cumbria, England (OS grid ref NY5056). 

Sterling

name
  • A city in Rice County, Kansas, United States. 

  • An English surname, thought to be a variant of Starling. 

  • A unisex given name transferred from the surname. 

  • A Scottish surname, variant of Stirling. 

  • A census-designated place in Loudoun County, Virginia, United States. 

  • A city, the county seat of Logan County, Colorado, United States. 

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