general election vs straw poll

general election

noun
  • An election, usually held at regular intervals, in which candidates are elected in all or most constituencies or electoral districts of a nation. 

  • An erection. 

straw poll

noun
  • A survey of opinion or a vote that is nonbinding, unofficial, casual, or ad hoc. 

How often have the words general election and straw poll occurred in a corpus of books? (source: Google Ngram Viewer )