Highest Tesco market share Changes in real food prices Number one supermarket Tesco Index, 2000 = 100 By postcode area Morrisons Perth 60% Asda Salisbury 58 Somerfield Southall 58 Swansea 57 Sainsbury’s 100 Inverness 98 56 Inverness Dumfries 54 Truro 53 Hemel Hempstead 52 Dundee 52 Cambridge 51 Twickenham 51 50 Romford Lowest Tesco market share 14% 14 12 10 9 4 1 94 Dumfries Sunderland 92 Lancaster 90 Market share Tesco Torquay Asda Llandrindod Wells Wolverhampton Harrogate 2000 2001 2002 2003 2004 2005 2006 07 Lancaster Bromley Dundee Perth 96 26.0% 13.2 Sainsbury’s Wolverhampton Llandrindod Wells 12.5 Cambridge Swansea Morrisons 9.0 3.5 Somerfield 3.5 M&S Hemel Hempstead Southall Twickenham Romford Bromley Salisbury Sunderland Harrogate 3.1 Waitrose Truro Torquay SOURCE: COMPETITION COMMISSION, PROVISION, CACI
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