Answer: Air and water travel (a.k.a. transport industries), are strongly interlinked with tourism, and has continuously been contributing an average 5% of NZ's GDP in the past 30 years. Bottomline is that air and water travel helps boost NZ's economy including goods, services, and other economic activities.
Explanation:
Here's the source of my answer:
Economic Impacts of Transport & Tourism in New Zealand
https://www.nzae.org.nz/wp-content/uploads/2011/08/Economic_Impacts_of_Transport_and_Tourism_in_New_Zealand.pdf
