h vs p

h

character
  • The eighth letter of the English alphabet, called aitch and written in the Latin script. 

intj
  • Used as a filler response when one has nothing in particular to say. 

p

character
  • The sixteenth letter of the English alphabet, called pee and written in the Latin script. 

noun
  • proton 

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