How much could your water bills increase?

Table with 3 columns and 12 rows. Sorted descending by column "Increase"
Southern Water£603
£183
Dŵr Cymru / Welsh Water£603
£137
Hafren Dyfrdwy£524
£128
Yorkshire Water£537
£107
Thames Water£535
£99
United Utilities£536
£94
Severn Trent£496
£93
Anglian Water£557
£66
South West Water£561
£64
Northumbrian Water£460
£45
Wessex Water£497
−£12
Water and wastewater companies – average£535
£94