In 1890 a population survey recorded a total of 69 cases.

By 1945, it increased to 2,160 according to an official land and population survey.

Local officials are now trying to get a population survey up and running to seek federal aid.

But it's hard for them to figure what to make of the much different job picture that the current population survey is presenting.

The census revealed growth by an average of 2.3 percent since the last population survey in 1999.

There are also many other measurement problems in population surveys.

Its population surveys carry huge weight in shaping community policy.

National household and population surveys, the main reservoir of information on families, rarely include men who don't live at home.

This data comes from travel time, range from station, and/or a population survey.

A normal population survey showed that during poor light or near dark conditions, differences of 1 mm on average between pupils was found.