The average is about four per week, according to a new government survey.
In the American military, according to a government survey for 1995, the figure was 55 percent.
The last detailed Government survey of the states was in 1982.
A 1999 government survey found that 79.3 percent of the public supported it.
Every 10 years there is a Government survey on weight.
According to the most recent government survey, the population of the municipality is 28,926 people.
More than 9 percent of all fast-food employees were over 55 in the late 1980's, a Government survey found.
Some government surveys show a rising number of teenagers using the drug for the first time.
A new Government survey shows strong support for longer prison terms than criminals have been receiving.
One Government survey found that employees estimated they had worked about 400 hours a year more than the statistics showed.