clamp down on vs garrotte

clamp down on

verb
  • To take measures to stop something; to put an end to. 

garrotte

verb
  • To execute by strangulation. 

  • To suddenly render insensible by semi-strangulation, and then to rob. 

noun
  • A cord, wire or similar used for strangulation. 

  • An iron collar formerly used in Spain to execute people by strangulation. 

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