annual leave vs bank holiday

annual leave

noun
  • The use of such days to be away from work; on holiday or vacation. 

  • Amount of time expressed as the number of days per year that an employee is entitled to be away from work. 

bank holiday

noun
  • A weekday, often a Monday, on which most businesses are closed, and granted to workers as a national holiday. 

  • A closure of banks in a jurisdiction to curtail or prevent a bank run. 

How often have the words annual leave and bank holiday occurred in a corpus of books? (source: Google Ngram Viewer )