Measured cost of a healthy diet (World Bank), per country or ranked, and the grocery model’s error

World Bank Food Prices for Nutrition: the cheapest locally available healthy diet, per person per day, in local currency and USD, with the share who cannot afford it and the food-group split. Also how far this site’s modelled grocery prices are from it (modelError, and modelErrorSummary on a ranking). A least-cost diet, not typical spending; display only. Dollar figures are withheld where a local figure does not convert consistently. For information only; every response says so first.