strangling vs throttling

strangling

noun
  • The crime of killing by strangling. 

throttling

noun
  • The temporary reduction of bandwidth through a communications network by controlling the package flow rate, in order to minimise congestion. 

  • Reduction in amount of chemical or other fluid in process such as a heating or ventilation system. 

  • Reduction in flow rate between two points caused by an intermediate restriction, device, structure or configuration. 

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