hayloft vs stook

hayloft

noun
  • The upper storey of a barn used for storing hay. 

stook

noun
  • A pile or bundle, especially of straw. 

  • A group of 6 or 8 sheaves of grain stacked to dry vertically in a rectangular arrangement at harvest time, largely obsolete since the advent of combine harvesters and powered grain driers (mid 20th century). 

verb
  • To make stooks. 

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