first responder vs paramedic

first responder

noun
  • A member of an emergency service trained to provide emergency medical care. 

  • A member of an emergency service who is first on the scene, or among those first on the scene, at an emergency. 

paramedic

noun
  • An individual trained to medically stabilize people through various interventions, victims of trauma or medical events outside of a hospital setting and preparing them for transport to a medical facility. 

  • An individual who is licensed at the state or national level to practice medical interventions in an emergency pre-hospital setting. 

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