sweet sixteen vs teens

sweet sixteen

noun
  • sixteen 

  • A girl's sixteenth birthday, or sixteenth-birthday party and a related coming of age party. 

teens

noun
  • The numbers between thirteen and nineteen. 

  • The second decade of a century: the 1910s, 2010s, etc. The oneties, the tens. 

  • The range between 10 and 19. 

  • The time of life between thirteen and nineteen years old; the teenage years. 

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