The following table sets out the number of meters water supply companies have installed in households in the last three years.
2006-07 2007-08 2008-09 Water and sewerage companies Anglian (including Hartlepool Water) 25,516 28,586 33,222 Dwr Cymru 18,753 15,042 19,947 Northumbrian Water (including Essex and Suffolk Water) 41,743 34,489 31,292 Severn Trent Water 38,594 33,215 44,331 South West Water 26,330 28,528 23,162 Southern Water 35,847 19,224 21,160 Thames Water 47,204 34,519 36,288 United Utilities 39,503 37,734 58,240 Wessex Water 11,325 11,277 18,570 Yorkshire Water 32,391 25,176 40,144 Water only companies Bournemouth and West Hampshire Water 6,353 4,755 4,806 Bristol Water 7,285 5,949 9,431 Cambridge Water 1,466 1,381 1,432 Dee Valley Water 2,659 2,432 2,487 Folkestone Water 5,117 3,793 3,787 Portsmouth 5,797 3,734 5,219 South East Water (including Mid-Kent Water) 21,959 14,489 13,339 South Staffordshire Water 6,176 4,344 7,568 Sutton and East Surrey Water 8,871 5,814 7,179 Tendring Hundred Water 1,110 890 1,242 Three Valleys Water 40,933 30,351 28,247 Source: Ofwat.