The latest TNS Worldpanel statistics for the UK grocery sector have revealed that market leader Tesco has yet again increased its share.

For the 12 weeks to 13 August, Tesco's share of the market was 31.6%, against 30.3% in the corresponding period last year.

However, with the multiple grocer segment as a whole swelling by 6% for the same period, from GBP17.16bn to GBP18.13bn (US$34.3bn), TNS Worldpanel said that most major grocers had shown growth in terms of total sales for the 12-week period.

While Tesco registered the largest rise in sales, with an increase of 10%, Asda's sales over the 12-week period rose by 6% and Sainsbury's by 8%. Morrisons' sales were up by 4%.

The strongest sales gains, however, were seen at Waitrose and Aldi which showed 12% and 16% growth respectively, boosted by recent store acquisitions.

"The latest TNS Worldpanel grocery market share figures published today, for the 12 weeks ending 13 August 2006, show a strong market growth of 6% against the same period a year ago - a level not seen since August 2004," said Edward Garner, director of research at TNS Worldpanel. "Coupled with the collapse of the Kwik Save fascia, which has dropped from 1.7% share a year ago to 0.2% now, this has enabled most of the major grocery retailers to show a positive trend."

While Tesco further increased its market leadership, Sainsbury's share increased from 15.7% to 16.0% over the 12-week period, as the battle for second place continues to hot up. Morrisons' share fell slightly from 11.2% to 11.0%, while Asda's share was unchanged at 16.6%.