haulage vs transshipment

haulage

noun
  • The business of transporting goods. 

  • The charge levied for hauling or pulling a ship or boat. 

  • The act of hauling. 

transshipment

noun
  • The transfer of goods from one means of transport to another. 

  • The shipment of goods via an intermediate destination. 

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