FED vs explosion

FED

noun

  • Field emission display. 

name

  • Federal Reserve System. Alternative spelling of Fed 

explosion

noun

  • A sudden outburst. 

  • A sudden uncontrolled increase. 

  • A violent release of energy (sometimes mechanical, nuclear, or chemical.) 

  • A bursting due to pressure. 

  • The sound of an explosion. 

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