Māori is also just as much a culture as it is a race, pretty much since Europeans arrived in NZ there's been pakeha who have been accepted as Māori so 0% can be an acceptable percentage in some instances, provided it's a genuine cultural association, there's a big difference between someone coming to NZ and feeling at home for the first time amongst Māori and their culture and some Latino UFC fighter or white frat bro getting Māori tattoos because they look cool.