Prevalence in epidemiology is the proportion of disease found to have been affecting a particular population (typically a disease or a risk factor such as smoking or seat-belt use).
Exclusive analysis by The Daily Telegraph reveals the price of an average basket of groceries at any Coles and Woolworths supermarket in Sydney has jumped a staggering 16 per cent since 2009. That adds as much as $26 a week to the average bill.he analysis found that if a shopper today purchased the identical basket of groceries used in Choice's 2009 Supermarket Survey, they would pay more than $158 for what two years ago cost $136. CommSec economist Craig James said the average household currently spends $185 a week on food.
Food Spending. The USDA calculates average food costs at four different consumption levels: thrifty, low-cost, moderate-cost, and liberal. They assume that all meals and snacks are eaten at home, which lowers the cost. In June 2010, the thrifty plan for a family of 4 per week was $134.50.Low-cost = $175.10 Moderate cost = $219.10 Liberal cost = $265.90.ood is about 25 % cheaper in USA, and most of the people in the world don't have enough food or money for food. In mud hut villages, in average, people use only 30 $/month for food. The average American family of four spends amount $100-200 a week on groceries.