iron-handed vs procontrol

iron-handed

adj
  • Strict and dictatorial, exercising firm ruthless control. 

procontrol

adj
  • Supportive of greater government control over society, authoritarian or supportive of greater authoritarianism. 

  • Synonym of antigun: supportive of greater gun control, typically inclusive of opposition to gun rights. 

  • Synonym of protectionist: supportive of export controls over international trade, especially for political ends or to prevent technology transfer. 

How often have the words iron-handed and procontrol occurred in a corpus of books? (source: Google Ngram Viewer )