systemic vs widespread

systemic

adj
  • Embedded within and spread throughout and affecting a whole system, group, body, economy, market, or society. 

  • Pertaining to an entire organism. 

widespread

adj
  • Affecting a large area (e.g. the entire land or body); broad in extent; widely diffused. 

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