amount vs spending

amount

noun
  • A quantity or volume. 

  • The number (the sum) of elements in a set. 

  • The total, aggregate or sum of material (not applicable to discrete numbers or units or items in standard English). 

verb
  • To be the same as or equivalent to. 

  • To total or evaluate. 

spending

noun
  • An amount that has been, or is planned to be spent. 

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