pandemonium vs ruckus

pandemonium

noun
  • An outburst; loud, riotous uproar, especially of a crowd. 

  • A loud, wild, tumultuous protest, disorder, or chaotic situation, usually of a crowd, often violent. 

ruckus

noun
  • A noisy disturbance and/or commotion. 

  • A row, fight. 

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