posting vs unemployment

posting

noun
  • The place where a soldier or airman is posted for duty; the time spent there. 

  • A message posted to a computerized bulletin board, a newsgroup, a blog, etc. 

  • The action of the verb to post. 

  • An item inserted into a register, ledger or diary. 

unemployment

noun
  • An instance or period of joblessness. 

  • The level of joblessness in an economy, often measured as a percentage of the workforce. 

  • The state of having no job; joblessness. 

  • A type of joblessness due to a particular economic mechanism. 

  • The phenomenon of joblessness in an economy. 

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