The picture was obtained on the basis of previous surveys.

A previous 2008 survey had shown a 34% patronage increase in one year.

That was more newcomers than in any of the previous 17 surveys, the magazine said.

In all previous surveys the students had indicated the drugs were increasingly available.

In previous surveys, public school students have expressed reservations about their teachers.

That's up from 33 percent in the previous survey.

The value is also five times lower than the levels seen in a star during any previous survey of dwarf galaxies.

That figure is far higher than any previous survey.

This represented an increase of 4 degrees from the previous survey, conducted in 2006.

He was of two minds about their deferred answer on a previous survey.