amount vs mathematics

amount

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

  • A quantity or volume. 

  • 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. 

mathematics

noun
  • A person's ability to count, calculate, and use different systems of mathematics at differing levels. 

  • An abstract representational system studying numbers, shapes, structures, quantitative change and relationships between them. 

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