hooroo vs skol

hooroo

intj
  • Hooray. 

  • Goodbye. 

verb
  • To give a cheer of "hooroo". 

skol

intj
  • A drinking-toast; cheers. 

verb
  • To down (a drink). 

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