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.
WASHINGTON, D.C. -- Americans report spending $151 on food per week on average. One in 10 Americans say they spend $300 or more per week and, at the other extreme, 8% spend less than $50. Gallup has asked a version of this question as far back as 1943, but has not asked it since 1987. In 1943, an average of $15 per week was spent on food.