extradition vs transportation

extradition

noun
  • A formal process by which a criminal suspect held by one government is handed over to another government for trial or, if the suspect has already been tried and found guilty, to serve his or her sentence. 

transportation

noun
  • Deportation to a penal colony. 

  • A ticket or fare. 

  • A means of conveyance. 

  • The act of transporting, or the state of being transported; conveyance, often of people, goods etc. 

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