congresswoman vs stateswoman

congresswoman

noun
  • A female member of congress 

  • A female member of the House of Representatives 

stateswoman

noun
  • A woman who is a leader in national or international affairs. 

  • A female political leader who promotes the public good or who is recognized for probity, leadership, or the qualities necessary to govern a state. 

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