§ Mr. Ridsdaleasked the Secretary of State for the Environment if, in view of
1974–75 1975–76 1976–77 Percentage increase over Percentage increase over Water Authority Total Total 1974–75 Total 1975–76 £ millions £ millions Per cent. £ millions Per cent. North-West … … … 90.6 135.3 49 156.1 15 Northumbrian … … … 23.2 32.4 40 42.7 32 Severn-Trent … … … 102.1 145.0 42 185.3 28 Yorkshire … … … 57.9 83.3 44 104.3 25 Anglian … … … 78.6 102.4 30 126.6 24 Thames … … … 126.2 170.1 35 200.6 18 Southern … … … 42.4 67.0 58 67.3 0.4 Wessex … … … 25.4 36.0 42 47.7 33 South-West … … … 21.1 30.9 46 39.0 26 Welsh National Water Develop ment Authority … … … 52.4 81.6 36 94.2 15