21.   Whatever the marketing and privacy implications, the lists do offer an unscientific survey of regional tastes.

22.   While free love was the buzz around the original Aquarian Exposition, there seemed to be little of that this time, according to an unscientific survey.

23.   A number of Railtrack managers oppose a sale on safety grounds, according to an unscientific survey taken by the white-collar union the Transport Salaried Staff Association.