Travel - Visitor arrivals by every country of residence and purpose (Monthly) Jan 2005–Dec 2023

Country of residence: the country where the person last lived or will next live for 12 months or more.
Travel purpose: the main purpose for the visit to New Zealand or trip overseas. Categories are holiday, visiting friends and relatives, business, conferences and conventions, education, and other.
Visitor arrivals: Visitor arrivals are overseas residents arriving in New Zealand for a stay of less than 12 months.

These statistics relate to the number of passenger movements to New Zealand, rather than to the number of people - that is, the multiple movements of individual people during a given reference period are each counted separately.
From March 2020 to July 2022, the New Zealand government implemented measures to protect New Zealanders from the COVID-19 virus, effectively limiting travel to and from New Zealand

http://datainfoplus.stats.govt.nz/Item/nz.govt.stats/f705ca38-ea6e-453f-b1d9-a95dc0fcaf59#

A person may change their intentions after their arrival, which may mean the recorded passenger type becomes incorrect. Stats NZ does not revise published statistics for such changes, but advises that the published figures remain a good indicator of trends in permanent and long-term migration.
Data is derived from a sample of records and hence may contain sample error. Caution should be used when using data with low cell values.
Note: the 2023 data for countries with small samples is subject to high level of misclassification error and should be disregarded.

'Transit' passengers do not complete border clearance – regardless of whether they travel by air or by sea – so are not included in these statistics. About three-quarters of cruise ship passengers visiting New Zealand are 'transit' passengers.

Imputation of 'country of residence' for visitor arrivals who have not stated a response on their arrival card, occurred from August 2016 to October 2018.
From November 2018, 'country of residence' was fully captured and no longer sampled, resulting in an increase in the 'not stated' category.
From December 2019 'country of residence' remains fully captured, but is imputed for visitor arrivals who have not stated a response on their arrival card.

At URL provided, select 'Tourism > International Travel and Migration - ITM > Visitor arrivals by EVERY country of residence and purpose (Monthly)'. All variables from 2005 were selected to create this dataset.

International Travel covers the number and characteristics of overseas visitors and New Zealand resident travellers (short-term movements) entering New Zealand.

Data is obtained from electronic passport and flight records by the New Zealand Customs Service.