sociable vs social butterfly

sociable

noun
  • A sociable person. 

  • A four-wheeled open carriage with seats facing each other. 

  • A couch with a curved S-shaped back. 

  • An informal party or church meeting for purposes of socializing. 

  • A bicycle or tricycle for two persons side by side. 

adj
  • Tending to socialize or be social. 

  • Offering opportunities for conversation; characterized by much conversation. 

social butterfly

noun
  • A gregarious person who likes to attend parties and other social gatherings; a people person. 

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