pubescent vs sweet sixteen

pubescent

noun
  • An individual who is going through puberty. 

  • Synonym: See Thesaurus:pubescent 

adj
  • At or just after the age of puberty. 

  • Covered with down or fine hairs. 

sweet sixteen

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

  • sixteen 

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