responsibility vs volatility

responsibility

noun
  • A duty, obligation or liability for which someone is held accountable. 

  • The state of being responsible, accountable, or answerable. 

  • The obligation to carry forward an assigned task to a successful conclusion. With responsibility goes authority to direct and take the necessary action to ensure success. 

  • The obligation for the proper custody, care, and safekeeping of property or funds entrusted to the possession or supervision of an individual. 

  • The state of being liable, culpable, or responsible for something in particular. 

volatility

noun
  • The state of having a low boiling point and evaporating readily. 

  • The state of being unpredictable. 

  • The state of being able to fly. 

  • The state of not retaining data in the absence of power. 

  • A quantification of the degree of uncertainty about the future price of a commodity, share, or other financial product. 

  • The state of being volatile. 

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