shipping vs watercraft

shipping

noun
  • Passage or transport on a ship. 

  • The transportation of goods. 

  • The body of ships belonging to one nation, port or industry; ships collectively. 

  • Navigation. 

  • The cost of sending an item or package via postal services. 

watercraft

noun
  • Any vessel with implements designed to move it in arbitrary direction through one or various bodies of water – a boat, ship, sea scooter, or similar vehicle. 

  • Skill in boating, swimming, or other water-related sports. 

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