NZCASS Technical manual [pdf, 5.3 MB]
...probability proportional to size. Target population Total usually resident 5 , non-institutionalised, civilian population of New Zealand aged 15 years and over. Sampled areas North Island, South Island and Waiheke Island. Areas excluded offshore islands other than Waiheke Island PSUs containing fewer than 9 dwellings. Dwellings included Permanent, private dwellings. Note: While hospitalised or dependent residents of homes for the elderly were ineligible for the survey (i...