Prevalence is a measure of disease that allows us to determine a person's likelihood of having a disease. Therefore, the number of prevalent cases is the total number of cases of disease existing in a population. A prevalence rate is the total number of cases of a disease existing in a population divided by the total population. So, if a measurement of cancer is taken in a population of 40,000 people and 1,200 were recently diagnosed with cancer and 3,500 are living with cancer, then the prevalence of cancer is 0.118.
1 Canned food or frozen raw food, on average, costs between $400 and $1,000 per year for one to three cases of 13-ounce cans per month or for one to three 10-pound bags of frozen raw food per month. Premium or holistic dry kibble, on average, costs between $200 and $400 per year for a thirty-pound bag every month to two months.
As an example, the chart for March 2010 shows that for an average family of four, with one child between the ages of six and eight and a second child between the ages of nine and eleven, could expect to spend $954.50 per month on groceries. That adds up to $11,454.00 for the average of cost groceries per year.One advantage of using this USDA chart is that it is updated on a monthly basis, reflecting the current costs.he average food budget, following a moderate food plan, can be roughly calculated per year by allowing: 1  $3,120 for an adult male. 2  $2,760 for an adult female. 3  $2,100 for a child under age 12.