Despite the millions spend on advertising, free rugby league tickets and food vouchers, more than 10 percent of the population still hasn't completed this year's Census. For Māori and Pasifika, about one in four are yet to fill out their forms. After a disastrous 2018 Census, hopes were high mistakes couldn't be repeated. Susie speaks to Māori demographer Professor Tahu Kukutai and Stats NZ deputy chief statistician Simon Mason.