Tippex vs correcting fluid

Tippex

noun
  • A particular brand of correction fluid, or correction fluid in general. 

  • A particular brand of correction tape, or correction tape in general. 

verb
  • To delete using correction fluid. 

correcting fluid

noun
  • An opaque fast-drying liquid used to cover a mistake written or typed on a piece of paper. 

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