The Maori perspective of well-being, the Whare Tapa Wha model, is used especially in health and social services and makes explicit spiritual well-being. Maori expert Mason Durie developed this model in 1982 to reflect the Maori view of health and wellness around four dimensions: taha wairuci (spiritual health), taha hinengaro (mental health), tahct tinana (physical health) and taha whanau (family health). Different parts of a wharenui (meeting house) represent each of these dimensions. This is a major international survey, the most recent round of which took place in 2014, with results reported in 2016.