December vs October

December

name
  • A female given name from English. 

  • The twelfth and last month of the Gregorian calendar, following November and preceding the January of the following year. 

  • A surname. 

October

name
  • A female given name from English. 

  • The tenth month of the Gregorian calendar, following September and preceding November. Abbreviation: Oct. 

verb
  • In the early Soviet Union, to give a child a name tinged with Soviet revolutionary thought, as opposed to religious christening. 

noun
  • A type of ale traditionally brewed in October. 

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