assessment vs criticism

assessment

noun
  • An appraisal or evaluation. 

  • The act of assessing or an amount (of tax, levy or duty etc) assessed. 

criticism

noun
  • A critical observation or detailed examination and review. 

  • The act of criticising; a critical judgment passed or expressed 

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