annual leave vs long weekend

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. 

long weekend

noun
  • A weekend extended by one or more days off falling on a day or days immediately preceding or following it. 

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