A new report by Massey University for Immigration New Zealand says that since 2000, the number of overstayers has dropped from about 20,000, to just over 10,000.
The university's Paul Spoonley, said the drop in overstayers from the two countries accounted for two-thirds of the overall drop in overstayer numbers.
Professor Spoonley also said reports that the Tongan community has the highest percentage of overstayers is incorrect.
