nervousness vs stage fright

nervousness

noun
  • The state or quality of being nervous. 

stage fright

noun
  • A state of nervousness about performing some action in front of a group of people, on or off of a stage; nerves; a lack of self-assurance before an audience. 

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