But the works here, dating from 1880 to 1965, by no means add up to a representative survey.

A large nationally representative 2010 British survey about energy issues found that public opinion is divided on the issue of nuclear power.

No four-disk album can hope to provide a truly representative survey of Berlin's musical life over this 21-year period.

It is carried out by a worldwide network of social scientists who, since 1981, have conducted representative national surveys in almost 100 countries.

Mintel spoke to more than 2,000 people in a nationally representative survey.

In the 1990s, a representative survey claimed there were only about 45,000 followers left.

Each 2 weeks Razumkov Centre held a representative national survey.

The findings come from a nationally representative survey of 903 teens with drivers' licenses at 26 high schools.

The Michigan study was based on nationally representative surveys of some 44,000 students in Grades 8, 10 and 12.

They said the quality of sampling procedures was well above the level common in national surveys, using a large, nationally representative survey.