basket case vs loony

basket case

noun
  • One made powerless or ineffective, as by nerves, panic, stress or exhaustion; someone considered mentally unstable. 

  • An institution or country in a bad condition or difficult situation (economically, financially or otherwise). 

  • Someone (especially a soldier) who has lost all four limbs. 

loony

noun
  • An insane or very foolish person. 

adj
  • Insane. 

  • Very silly, absurd. 

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