bungee vs caoutchouc

bungee

noun
  • A rubber eraser. 

  • An elastic fabric-bound strap with a hook at each end, used for securing luggage. 

  • An elastic cord tied to the ankles of the jumper in bungee jumping. 

verb
  • To bungee jump 

caoutchouc

noun
  • latex; natural rubber 

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